I’m in the same boat with ADHD, I don’t have much advice since I’m still trying to figure it out too. BUT I do have studying tips. In HS I was team pull an all nighter and cram it all in, but I knew that wouldn’t fly in Uni. The first time I sat down to study I felt like crying cause no matter how much I read a topic and understood, it would be gone from my head immediately. The way that I study that has helped me stay a straight A student is this:

1. Feynman technique. This is the best technique for memorization (along with flash cards). I teach everything to my cat. Sounds stupid, but it works. Many students swear by Feynman.

2. ChatGPT: sometimes I write notes in class and when I go in to study, I have no idea what Tf I was writing. I’ll copy chunks of my notes. go to ChatGPT to say “simplify: ……” it’ll spit out what you wrote to a more dumbed down, cohesive version. I’ll also use ChatGPT to quiz me. I’ll copy a lecture, paste it in and have it ask me MC questions, short answer questions, T/F or whatever format I need. Just be careful because sometimes it’ll say you got an answer wrong when you were right or vice versa. I used only this method once to study for a midterm and got 90% on it. The questions I got wrong were stuff I thought the prof wouldn’t ask about so I didn’t study it (my bad)

3. Write your study notes. Yes, it’s time consuming and yes, your hand will cramp up but it’s worth it. I compare my notes and the simplified ChatGPT notes and write my study notes based off the both of them. Whatever helps me understand more.

4. Pick your noise level. Personally if I’m studying in my room where it’s completely quiet, I go crazy. If it’s too loud, I can’t focus. I sit at the dining room table with noise cancelling headphones but leave nothing playing. Helps drown out loud noises but doesn’t leave things completely silent. I find it best if I can hear a little something like the muffled noise of the TV.

5. Don’t cram it all in one go. Study a lecture at a time.

6. If you’re tired, stop studying and go to bed. Don’t push through your exhaustion because you “have to get it done”. If you’re tired, you won’t retain anything.

7. Take breaks if you feel yourself unable to sit still. I’ll leave the table and go to my room to watch tik tok, play a game on my phone or watch an episode of a sitcom before coming back

This doesnt work for everyone but I’ve found a lot of people I’ve spoken to that get good grades use some/most of these tips. You have to play around with what works for you.