You are preaching to the choir! I feel like the combination of loneliness and boredom = depression. You feel like your missing something.
I also feel disconnected from the world around me. I feel even when I have a partner or friend i don’t feel connected or safe.
I think therapy would help, talking with a professional so you don’t have to feel like a burden. I’m interested to see what solutions you come up with because I think it’s more than finding a hobby or something to do.
All the best!