Can anyone help me out of this slump?

Ok well to start off im 16 almost 17. Yea i know im young but im just in this slump i cant seem to get myself out of. My life sucks right now. I got dumped by an amazing girl, i cant find a job, all my old friends left me and i just feel so helpless. I want a job because im tired of leeching off of others for everything i want to grow up. I've sat in this house for weeks now with little contact to anyone. I just feel like nobody cares whether im dead or alive... Should i just kill myself and save myself from longer suffering? Or should i just sit here and do nothing? Nowhere will hire me i've been turned down every place i go looking for a job. I am tired of feeling this way and it seems nobody can help me... But i am just a teen and someone out there has to have gone through this right? So anyway please i just need help and nobody will help me.