Thinking too much can hurt

I got in a funk today. My feelings and emotions are running on high about someone. I genuinely like him but don't want to be hurt. While I try to move on from the past I can't help but pick up on similarities sometimes. The past is unnerving because I've tried to learn my lessons and move forward. When will I be comfortable with other people? Comfortable with myself and my feelings?

Today I've worked so hard to not fall for someone that hasn't made themselves available. Will he ever be available to me? Or will he go back to where he was? Or will he give himself to someone else?

My brain is scrambled on all of this!!