Exploring Atypical Autism: Seeking Insight and Treatment

A little backstory here for context- As far as ADHD goes, I was diagnosed at the age of 7. I was never really told what the diagnosis meant and being a kid that kind of made sense. However, I was put on meds until the age of 17 because I decided that I did not want them anymore. Over the years I realized that the treatment I was receiving wasn't helping, in fact my Depression and Anxiety became exponentially worse over time on medication. The only thing it had helped me with was concentration but I received a negative experience across the board otherwise. Fast forward to this year and it's been 8 years since I've seen a doctor. I've done extensive research on ADHD, Anxiety and Chronic Depression in which j was all diagnosed with earlier in life. It's given me the motivation to get a doctor and seek a psychiatrist because I'd like to try again with help. My conditions have only gotten marginally better in some ways but for the most part I definitely still have issues. More recently I have been looking into research on Atypical Autism. I noticed that ADHD has comorbid symptoms for most people, autism being one. I am not diagnosed with any form of autism, however I do plan on getting screened when the time arises. I show some symptoms (although it's purely self-diagnosed) but I don't know if this is from a combination of symptoms I experience with my actual diagnoses combined with the lack of proper treatment over the years or of it's actually just Atypical Autism. Any insight on this by chance to help boil it down until I get a screening?