It is honorable and empowering to become free of any addiction. Keep up the good work.
The chains of addiction are not tied to your body but to your spirit, therefore it is of most importance to free yourself from addictions that bind you. When you die your body will dissolve but your spirit will be forever, you will be forever. If you are to move on to higher dimensions after your earthly life comes to an end you must break all chains or else you will be unable to move on and evolve or even find peace.
There are a few tales of souls who could not leave their addictions behind even after death, they got stuck on earth in the afterlife and slowly turned into parasites, dark specters who only wished to fuel their addiction and leeched on to still living humans to fullfill their needs through them. Also there are tales of souls who after death went to places that were according to their addictions and dwelled there, only endulging in their addictions for very long times like in a prison where every day it's the same place with the same things. Most people just get reborn again after a while here on earth because they cannot let go of their addictions and need to live again to resolve them or endulge in them again.
The problem is that even though a lot of people will not accept it, you keep your individuality after death...you will still be an individual spirit out there in the higher dimensions. This is why you must work so hard on your spirit, your mind, your willpower, your thoughts etc etc during this lifetime and cultivate a superb character free of as many flaws and addictions as possible. It will make your afterlife much easier and more free. No attachments. When your body is gone all you have is your spirit, your values, your willpower, your love. Those are your real assets, not material and not body.
People like to take the lazy way out with all kinds of excuses to not do the work here but unless you achieve a super-enlightenment and dissolve your identity completely (don't confuse this with the regular enlightenment that everyone is talking about) you will still be you and you will create a reality in the afterlife that reflects the state of your spirit, which can be heaven or hell.
I congratulate you for doing a first step but this is not the end. Throw away the chains of the mundane.