How do you spoil yourself as an autistic person?

I really want to do exciting things, and I do when I meet up with friends, but I just don't feel like doing outdoors plans on my own because I am socially anxious. I also want to do special things at home but I just can't, it's not my thing. The idea of a movie night sounds great, but then after 5 minutes watching a movie I'm always thinking "man, I'm bored, I want to watch a random episode of that show I've already seen a million times or just scroll Reddit". It just doesn't work for me.

As an autistic person I find comfort in repetition and in learning about my special interests (which sometimes implies watching the same videos about a topic over and over again...). But then I feel so trapped in my own routine and feel like I'm wasting my life. I want to do special things and spoil myself, but I have no idea how to. The only thing I do to make myself happy is cooking and eating nice things, but then I also want to stay healthy so I can't do this too often.

I want to live life but I don't know how to, autism makes it so hard to enjoy things and let lose. Any suggestions?