I can tell you from personal experience that it likely won’t go away. I was diagnosed almost 17 years ago and have had sleep problems forever. What I have found works for me is go hard as you can every day. If your in school listen as hard and focus as hard as you can. Do as much stuff as you can get done in a day. If you like video games in the evening like I do buy a pair of Gunnar glasses that filter out blue light. That will help immensly with falling asleep, especially if you game from 6pm to 11 or 12pm every night like I do. If you wear yourself out and wear those blue light filter glasses when on the computer or tv at night it may make a world of difference for you. It did for me. Even after a 5 hour gaming session after work I can usually lay down and go straight to sleep now. I still have problems but they are sporadic now instead of every night for weeks straight. Good luck.