Possible Autism Diagnosis: Seeking Support and Advice

Hi, so I’m pretty sure I’m on the autism spectrum. Like 90% sure. I’ve done a lot of research and I see my current and younger self in so many of the traits. My therapist doesn’t believe me and that felt so awful to hear. I’ve been feeling pretty discouraged from going on to getting a diagnosis or talking about it with my psychiatrist. So, I was wondering if anyone knew of some resources for me to bring with me. I know online tests are obviously not very accurate, but I was wondering if there was any sort of checklist for diagnosis that I could access and use as taking points. I would also be very happy to hear about anyone’s similar experiences and how they felt with this. Thanks :)

So, I have been diagnosed with multiple things for multiple years now. However, recently I have thought that maybe some of my symptoms may be due to Autism Spectrum Disorder (ASD) instead of maybe my previous diagnoses. However I am not ruling out that I still have those prior diagnoses. I just feel lost and don't have the money for a medical professional as I am now seen as an adult by the state and my mother refuses to help me. I just need someone to help me.

After years of confusion and research, I think I am autistic. What now?