Help with Motivation Organization

I'm waiting on Confirmation, but I am planning to working on my Bachelor's in Social Workin tge next few weeks. I plan to take two classes...I've been diagnosed ADHD/PTSD/suffered a stroke and recovering from a car hitting me as a pedestrian. Writing it out seems incredible.

My question is: Are there any apps or tools that were succesful for you? Should I meet with someone at the University to give me some tools to help? My brain can get fatigued earlier than hoped. I can have a cognitive delay when hearing others speak. People get rude, as if I am ignoring them. My face muscles don't contract to appear smiling. So, people misread me, resent me & then bully me.