How to trust people again after you have been betrayed

Say you have just been burned in a relationship or friendship. People say to "just get back up on the horse again." That is not so easy. Learn from the experience and become very picky about future friends or boyfriends/girlfriends. People are choosier about their cars than their friends! Surround yourself with people who you know will have your back. And don't share personal information with anyone too soon.