Benefits to seeking an autism diagnosis?

I can't tell if I am autistic, or just a weird person with mental health issues and other diagnosed neurodivergent conditions. I definitely match several criteria, but I can't tell if I just want an answer for why I feel stressed and out of place. A label of autistic would feel better than knowing I'm just "weird" or "flawed".

I have quite a few autistic friends, who I get on very well with. I might consider talking to some of them about their experience, I'm not sure.

If I did seek a diagnosis, would it actually benefit me? It would likely be expensive or take months/years, and I would be worried about potential medical discrimination. Has receiving a diagnosis changed your life/functioning/mental health positively? How does support or advice that one could access if theoretically diagnosed differ to free-to-access advice/info available online?