self diagnosed - should i try to get a formal diagnosis?

Hello,

I'm a 20 yr old woman and after some research I've self-diagnosed with ASD, reading about it made me realize that it just fits. However, I believe I would benefit from a formal diagnosis to get better help for my anxiety and depression, as I feel some of the advice I get from my therapist doesn't work if I'm autistic. Plus I struggle with trusting my own assessment so knowing for sure would help. What is everyone's opinion? Should I try and get a diagnosis?

If anyone is in a similar situation come and chat!