First, this is not for novices. I have seen a lot of questions and discussions on this forum about Solipsism, and people misunderstanding how it is that they could be the only conscious beings in existence. So, I wanted to drop some truth and give a detailed explanation for how it actually works.
Who the hell am I and why am I qualified to speak on this?
I'm a seeker, just like you, who has had dozens of incredibly powerful awakenings where I've realized the nature of reality and the self. I also had a near death experience where my heart stopped for 35 seconds in the hospital, and experienced the infinite. I have done psychedelics, as well as intensive self inquiry and experimentation with my visual field. All I ask is that you keep an open mind to the following, and I hope it helps.
So, is Solipsism true? 
100% Yes. However, you need to understand a few things to grasp this:
 
1 — What is God?
God is another word for that which cannot be spoken. It is "nothing." The great silence. Nothing is uncreated, as there is nothing else to create it, and necessary, as non-existence is impossible, as you would need existence to define against it.
"Nothing" / that which cannot be spoken is:
Not a "thing", but a being Eternal (as it did not have a beginning, nor an end, as it is uncreated) Non-localized (as there is nothing outside of it to be contained in) All powerful (as physical limits do not exist prior to nothing, there is nothing to limit it). Because this "nothing" is all powerful, nothing limited it from "awakening" or creating consciousness. An important fact to recognize, is that this "nothing" is mystical in origin. That is right, reality is mystical in origin, and not mechanical. It literally came out of nowhere, and no when. Complete magic. Let this sink in.
 
2 — Notice that everything is happening in your mind
Look around you, look at your body, a tree, a house, whatever.
Realize that all of reality is appearing in your consciousness. No matter what you do, you cannot escape the colors, sounds, feelings, thoughts, etc.
Even if you come from the materialist paradigm that it is all your brain, everything you are experiencing is appearing in your mind.
You have never, in fact, experienced anything other than your mind.
Yes? Good.
Now, where most go wrong is that they assume that the colors, sounds, thoughts, feelings, sensations, etc, are happening in their brain, and that they are receiving input from a physical world and a physical universe. But notice that it is exactly backwards. 
You have zero experience of a brain, or a face, or a head.
Look at your own direct experience and notice that right where your "face" should be, you have a luminous void in which the world, colors, sounds, feelings, etc, are appearing.
This void, or screen, is happening nowhere. Everything you have ever experienced has taken place in this void.
Close your eyes. What do you see?
A dark field.
This dark field is what holds your entire existence.
Objects, the universe, the world, everything appears in your consciousness, not the other way around.
 
3 — What is reality?
Reality is a VR experience or game, created by God, to keep itself entertained for all eternity.
 
4 — Am I God?
Yes. You are conscious. You are god.
See, because God is one, there cannot be another experience but its experience. 
God is a singular being dreaming up lifetime after lifetime, from the first person perspective, for eternity.
It has nothing else to entertain itself for all eternity but to dream.
And your life, right now, is one of those dreams.
You are literally God dreaming that it is your human self.
And when your current lifetime ends, you awake as a new self, in a new dream, and the process repeats.
Your consciousness is God's consciousness. And you have been awake, dreaming lifetime after lifetime for EVER.
 
5 — Is my life a dream?
Yes. Your life is a dream.
There is no physical universe, physical world, physical anything. 
It is all simply appearances happening within your consciousness.
Everything you try to use as an excuse to this fact is in essence delusion.
Your senses are not communicating information to you from an outside source. 
Your visual field, what you are experiencing right now, is all there is. There is nothing behind the appearance causing it, and no 3D dimensionality. 
It is simply a flat screen "wrapped" around your "head", projecting images for you.
And this creates the illusion of being a physical body.
 
6 — Are others conscious?
No. Others are not conscious. Only you are conscious. 
There is ONE single instance of consciousness in existence. And that instance is YOU right now.
All "others" in your dream are simply shards of your own infinite mind. This mind again, is happening nowhere. It is absolute.
 
7— But how does it work?
Here is where it gets juicy:
So, as God is eternal all powerful.
It created this dream reality all at once, without any self living it.
All possible dreams. All possible lifetimes. All possible combinations of storylines, characters, and evens. All possible colors, sounds, feelings, objects, etc.
Everything that could ever possibly be (again, these are dreams, as nothing can be outside of a dream / consciousness), were imagined all at once.
All of reality created in one instant, but without any animating self or consciousness to experience it.
All characters were empty suits, as they were simply models created by this infinite mind.
Once that was done, God decided to JUMP in and live each possible lifetime and each possible character, from the first person perspective.
Your life /dream right now is one of those combinations / possibilities. And once you are done with this life, you will go on to live another dream.
You get it?
"My" life and "your" life are non concurrent — they are not simultaneous experiences.
God could have lived 1 million lifetimes between yours and mine.
From your perspective, it looks like there are others, but in reality, everyone in your dream is one of those empty suits that God imagined during the moment of creation.
But it gets more twisted, because one day you will live their existence within the dream, as they are another character. And you will then encounter a non-conscious version of yourself, but you will be in another character's body.
 
8 — Is my life a Replay? Do I have free will?
Yes, your life is a replay. It already happened in the mind of God, and what you are, is God *experiencing* that movie or dream.
Yes, you have free will, and can alter the chain of events unfolding in your dream. It is an interactive movie or VR experience.
 
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Hope it helps.
If you have any questions please post below and I will try to answer.