@iceprincess Regardless what goals you have. Visualise yourself where you want to be, and feel like you are already there, at all times. This is key to ANYTHING in life. You must be FIRST, you must be the person you want to be first, results comes only after that. BE-DO-HAVE.
I gave same advice to a boxer, as to you. Why? Because this is universal and works for everything. Every domain.
For focus and concentration, meditate every single day.

For those of you into Kriya, I would highly recommend that in addition to reading the original Kriya book I suggested, you also read the books of Santata Gamana. I now prefer his more simplified techniques. It's a much more streamlined version of Kriya which I think will be even more effective. I found too much needless complexity and variety in the other way.
Right now my technique stack is very simple:
Mahamudra x3 Kriya Pranayama x24 Kriya Supreme Fire x3 One-pointed Concentration for 5 mins Eventually, with lots of practice, you should aim for something like the following stack:
Mahamudra x3 Kriya Pranayama x36-x72 Kriya Supreme Fire for 10-20 mins One-pointed Concentration for 10-20 mins (Bonus: Yoni Mudra x3) (Bonus: Kechari mudra) EDIT: ideally, do this stack twice per day. But if you don't have that much time, at least once per day.
Don't attempt to do this second stack right off the bat. It will not be sustainable. You need to gradually build up to it, like with heavy weightlifting.
I think the original book I recommended is still very good as an introduction and foundation because Gamana's books are so short and thin that they do not provide enough information about Kriya to a total newbie. They are aimed at people who have already been initiated in one school or another.
If you are strictly following the original book, that is okay. You can keep doing that if you want. Or you could switch to this more streamlined version like I decided to do. I don't like learning too many complicated techniques. But that's just me. Both ways should work in the end. It's mostly a matter of style. Although I actually think the streamlined version will end up to be more effective because it concentrates your limited time on the most powerful techniques, and less time is wasted on learning new complex techniques.