Ranting task paralysis etc.

I recently was diagnosed with ADHD at 21 and I just feel so ugh. I recently began grad school, schools always been a breeze to me I graduated university with honors what not my main issue is I cannot get myself to do my work. Obviously that’s me rn avoiding my research paper that’s due this Monday and i currently have 3 more essays after this but i cannot motivate myself to do them. I feel like a fraud at times like how did I make it to where Im at I can’t even do my assignments. I have been recently medicated and the medication did help me a lot with doing work mid semester when I got diagnosed but during finals I guess i’m just burned bc i just have been stuck in this state of i don’t wanna do stuff and just exhaustion. I just feel like so much guilt and like I don’t belong like a fraud. Is this a common issue for anyone else? I also get so bummed because I did school prior to meds but similarly enough I would burn out essays the same day they were due so I guess nothing has changed.