It's easy to get negative because you get beat down. You go through a few disappointments and it's easy to stay in that negative frame of mind. Choosing to be positive and having a grateful attitude is a whole cliche, but your attitude is going to determine how you're going to live your life.
I want to poke holes in the erroneous beliefs about what fame provides. It won't raise your self-esteem, it won't create profound connection, it's not going to heal your childhood traumas, it's only going to amplify them. You're going to be subject to a lot of criticism and praise, both of which are violent in their own ways.