This is what I had to do in college and the real game changer was getting meds. It went from spending a long time to get a reasonable amount of work to spending a lot of time to get a lot of work done. So if you haven’t already, get diagnosed and get meds. It’ll make the rest of college way more enjoyable and useful.
I have the same reaction to all of these except napping. If I lay down for like 10ish minutes and try to sleep, it really helps clear my head even if I’m not sleepy.