I'm going to share my insecurities and make it about me
Why do you want to make it all about you?
I'm insecure about what people think about me
It's understand to be insecure, but I think you are handling it the wrong way. Show vulnerability and also allow the other person to talk.
I'm going to ignore your advice, I don't like your negativity.
I am sorry you feel that way, I was trying to help. I think if you take my advice it will help you though.