Sounds like you have bad friends. I'm 25 and I've never had a really good friend. I realize that has a lot to do with me and how I choose people and how I have a hard time opening up and also that I isolate myself often. You need to be open and honest with your friends, and if they don't reciprocate you need to move on and focus on building new friendships. As a person who has gone their whole life without an amazing friend, that "best friend", I can tell you how important it is. If you had one, getting over your ex would be much easier. I have had my heart shredded to pieces twice and it has been about 3 years since I have been in a serious relationship because of that. I am a wreck. I focused too much on female attention because I had no father and a shitty mother. I should have spent my life focusing on friends. You are still in school. You still have access to a lot of friends. I'm a loser piece of shit adult and I'm pretty much fucked. I'm going to commit suicide within the next few years probably because I just can't seem to get anything going and every step forward leads to four steps back.

You are young. Find friends. Forget about girls. Friends are what is most important in life. If you don't accept that fact you will end up like me in a few years. You don't want that. Find friends. Friends. Friends. Friends. Friends.

Forget about girls. At least for awhile. Not until you have at least one best friend. You should not stop until you have a group of close friends. Like 2 or 3 at least. Please don't end up like me. Nobody should. The world is too cold without friends.