I'm fifteen and I have no idea what I'm doing.
I've been with thisa girl for over a year now and for a while now I've been losing interest in her, I don't want to leave her because I still love her(or at leaste I think I do) but I want to go out and try other women but I don't want to let her go. Also I'm scared I won't be able to come back, I have no idea what I'm doing.:confused:

Well... you're still really young and if you are losing interest in the relationship your in... is it worth staying with it?

If you are losing interest and you think its going to continue, then maybe you should leave.

You're young, you should be out having fun. Not worrying about these relationship issues. If you don't think it will get better, then head out there and have some fun

Being honest about your changing feelings with her, is the way to go, as giving her a chance to heal, after the break up, before you go out, and do your thing, is an act of caring, even though it will hurt for a while.

Be as gentle as you can, but be firm about it.

One of the reasons you date is to learn how to face and maturely resolve these feelings. Of course it's hard. That's what makes it truly educational.

You will, of course, honestly let this girl go. Just because you have dated is no reason to keep dating when you know it's pointless. Keeping her because you still "have feelings" but know you don't really want to... continuing anyway is pretty selfish. Some might even say mildly evil.

This girl, like you, only has one life. Once you know, you MUST be honest... no matter how painful. Else you're simply a villain... and you're no villain, right?

You can do it, even if it's hard, you can do it.

Leave her boy. It's not fair, for both you and her, if you keep staying even though you have lost all interests. The feelings you're having right now are just out of fear that you won't be able to have her around anymore, and that you are not going find anyone else to replace her soon. It's a normal feeling that everyone has before making the decision of saying good bye so it's no big deal really.
Just do it, leave! It's the best for both of you.
You're still young, possibilities are all over the place. Don't just let them get by because of some minus things like this