So I’ve noticed a pattern in my life that I was hoping someone could empathize with.

I’ve been training for over a year for a physical test that I really want to pass. The other day I tried to do the exercises that I’ll have to do in the test and I completed all of them successfully and now I feel that I’ve lost some of my motivation to get better. It’s as if I was trying to prove that I could do it and I feel that I have, although I really haven’t since I haven’t taken the test. I’ve noticed this before. A couple years ago I tried really hard to get into a prestigious degree in a reputable university through my own merit. I managed to get in and soon after I lost interest and quit. Has anyone experienced something like this before?

Thank you for your time :)

Ps.: I’m not sure this is related to ADHD, I just figured it might be and the people here might be able to advise me.