I create extra accounts to talk to myself with and pretend I have friends
Why do you need to make yourself fake friends?
I'm too sensitive to interact with people
Everybody wants to have friends. You can try making one new one and go from there.
I don't think I ever will.
Don't be so hard on yourself. It is okay to be embarrassed about not having friends, it should give you more motivation to try. I bet if you just try, you will find someone that you vibe with.