Be in a healthy relationship

I always pick people who are “unavailable” in some form and I always wind up disappointed, hurt, betrayed, and rejected. I’m tired of feeling so hurt and worthless as a result. I want to learn how to seek out healthy, nice people, instead of addicts, alcoholics, severely mentally abusive, lying womanizers with anger towards women. I want to find someone NICE and trustworthy who cares about me as much as I care about him.