
Meds can help for the time being. Don't be afraid of them, nor of how they can help you when so desperate.
Sorry to hear your gf left... that happens often during the teen years I think. It used to anyway.
At 14 you have many years ahead...and of real love, not teen love. As you mature, your ability and knowledge of love will too...and it will be sooo much better I bet. Hang in there!