Yeah I used to play bullet seriously but now I just play it for fun, my main focus is blitz now and rapid in the future.
You should also be familiar with your middle game plans and ideas for both sides at this point. If not, do some homework. You mentioned doing Game analysis; that’s definitely a given.
Quit experimenting as well; your just wasting time and pulling yourself away for where you can be accumulating more experience with your current repertoire.
The plan is have a concise training regiment. Quality over quantity.
Honestly I think improving my chess isn’t my problem, improving my mentality is. I get discouraged easily, I’m extremely impatient, and I overreact when I lose.