Most Helpful Girl
I think the reasons you are not happy is your thoughts thinking you won't be happy without him. The first step in moving on is letting go. After, telling yourself you can and will live without him and still be happy is what you should do next. You know that self ego that you don't need him to be happy? Cling on that :) I think the reason why guys don't approach you most probably because currently you are not happy with yourself. If even you don't like the way you are right now, how about others?
No. Don't go end your life. It'd get better really. Talk to your friends, let it all out. There's many things you can still be thankful with and many many other things you can still look forward too. Your future, another guy better than him perhaps? Don't just because of a guy you close the opportunities of all the other guys.
I know you are feeling really down right now. I know how bad it feels. I've been there too. I may be a stranger but I'm here for you. I'll be rooting for you! :) Smile! You'll feel far better.