another pro tip though admittedly a dangerous one potentially  when i was in school i got a 08  after 3 years at college i got a 35 overall the trick was first finding something i loved and secondly the pro tip    was that i noticed i only excelled when under extreme stress i took 18-21 units a semester while it was hell not allowing myself any time to waste forced me to be on top of everything and to do any work as it came  so use this with a grain of salt learn yourself and what works and doesn’t work for you but perhaps for some this strategy of making yourself too busy to procrastinate got me through school this can also possibly be adopted to other things in adhd life not pertaining to school