I lift free weights, although I do it in my basement with no spotter or trainer. I lift 5 times a week, and I do enjoy it. I don't know if it helps with my autism, though. I've been lifting for a few years, and I have seen some progress, but not as much as I would like. I suspect that my form is not good for making solid gains, and I also can't lift as heavy as I would like because I don't have a spotter. I am very physically awkward, so form is a major challenge for me. I watch videos, but I can't feel or see if I'm doing it right. I always end up feeling like an alien whose body is put together differently from the person in the video.
I enjoyed going to the gym, but it was very challenging to go by myself and be there with all the other people, especially if I had to talk to anyone. It caused a lot of anxiety for me. I don't think I would go back without a support person. I would love to train with a trainer, but I can't afford anything like that. Plus, I don't think I would do very well if I couldn't trust the trainer fully, which would take a LOT of time for me. I need to have a person with me who I can trust 100%; they have to be honest and clear with me all the time and answer my questions with real answers, nothing vague or sarcastic. Oddly, most people can't do that. If I had a trainer who could do that, I would go.
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You don't need to hide, my friend, for I am just like you.