How to break up with my girlfriend?

Hi
I'm 16 years old and I have been going out with my girlfriend (also 16) for almost 6 months, and we have spent almost every single day together...she has been kind of controlling in a sense... Because of this, I have lost MANY friends as I would always choose to hang out with my girlfriend. I think I can still get my friends back but I have to break up with her...
Our relationship is very serious, but for the past 2 months I have felt continually depressed and I've even cut myself a few times...but I only stopped because she found out and she threatened she would tell others.
She tells me she loves me more than anything and she would do anything to make me happy but I don't feel the same way about her anymore. I've found I don't like her personality over these months but we have spent so much time together and we've told each other how we're going to be married and have kids and live together forever. We both lost our virginity to each other and we've promised to be with each other and
I don't want to hurt her but I know I have to break up with her because I'm never happy anymore and I feel like I have lost all of my friends...
I don't know what to do we've spent almost every day together and we've been through a lot but I don't think I can go on like this..

There is no easy way... you just have to tell her that you just don't want to be with her anymore. It sounds like she is controling your life and you aren't. It is your life, if you want to break up with her, then do it. There are a lot of problems in your relationship and you really need to end it. You should never cut yourself because of relationship problems. (You should never cut yourself in any situation, by the way) Just tell her. The longer you wait, the harder it will be and the situation could get worse.

Hope I helped! =D

I guess theres no easy way to break it to her if you cant work it out.

Theres no way of not hurting her no matter what. She is not going to have an easy time with this, as she lost her virginity to you, which will make it that much more unbearable for her. My advice to you when you do do this, is to NOT lie, and tell her you still love her, or you just need a break. Be up front, and completely honest, so she knows you mean what you say. Dont tell her you still want to be friends, because you cant expect her to go from boyfriend/girlfriend to being just friends over night. Especially when shes still emotionally attached to you.

Good Luck!

Dear Yoshiboloni. Believe it or not, a lot of people have to break up with their "first true loves". Unfortunately a lot of teens has it planned in their minds that they will marry the person they give their virginities to but it's a different world when you grow up. I want you to understand that there are problems in every single relationship. If you feel like you must end it because you guys are now having problems then you're breaking up with her for the wrong reasons. If everyone broke-up when they approach conflict then no one will ever get married. This may not make sense to you but conflict = stronger love and understanding for the future. Without conflict you will never grow. I'm sure you've already experience this. Ex. after an argument and you guys work things out, you feel closer when you understand eachother's point-of-view.

I'm not trying to convince you to not break up with her. Friends are important in your life. As angelfire2708 has said to you. You will hurt her no matter what. If you feel you must end it for the both of you then you must NOT LIE at all. Be totally HONEST with her. Don't be so harsh on yourself either. You are doing her a favor by being honest with her and breaking up than to cheat on her b/c you're unhappy or stay with her and be miserable.

Hope I was able to help a little at least. Good luck and take care.