Why does this always happen?

I'm starting to re-think my whole moving situation. I know I still want to go to Texas, but I'm not so sure I want to go to Colorado. I want to stay with Andi, but I want to see if things could possibly work with James. Maybe I should just come back home after I'm gone for a few months. Or maybe I should stop re-thinking every major decision in my life. I'm always second guessing myself and I hate it. I never know what is truly right for me. I'm starting to wonder if I'll ever know. :/