Insomnia observation / + I need help

There's a scene in Fight Club of a character with insomnia where he talks about going to a support group out of fun. and then he was able to sleep well for the first time in a long time. I just interpreted it as meaning that he was able to “solve” something in his head, so he could sleep. And then I asked myself what I have to do or what has to happen to me so that I can finally sleep / sleep WELL again (since I meet the criteria for insomnia). I the people I was at school with and then when I got home I was able to sleep normally that night. I wish I had other things I could use to sleep like a normal person but it's just that (I think). It doesn't even work with sports. And that's a big problem because I have social anxiety and these are the only people with whom I have a little contact and otherwise I'm just so lonely and with no friends that I could meet more often. I only could met the people of my old school because of the help of my sister because she brought me to them.

I need help. I'd appreciate every single comment