You don't need the validation of a girl or sex to make you feel good about yourself. Before you have a girlfriend you have to be good with who you are. You are the same guy with or without a girlfriend. So like trip said work on getting fit and feeling good about yourself. Once you do this than it will be time to look for girlfriend. If not there always prostitutes if all you want to do is get laid. Just kidding don't do that. Just chill and focus on what you can do to get a girlfriend. If you think possitive and do the things nessasary to get what you want, it will happen. Best wishes!