What should i do?things are getting to me?

well im looking for peoples opinions....1st the girl i loved broke up with me i cant even look at pics of us or even her anymore coz it pisses me off/too painful..ive started drinking heavily again which i think will spiral out of control and may be my downfall someday..i help an uncle of mine but i get a pitance of a wage and rarely get paid and on top of that he drives me insane by making fun of me and i just ignore him and bottle everything i think this may lead to a nervous breakdown or something similair..now that im single i have to try and chat up women..something im terrible at...even after my a long relationship with my ex im still a virgin at 19 i find this embaressing(im ready to have sex but she would never do it) im also depressed(ive been diagnosed by a pro) all of these things are having a terrible affect on my life..if anyone has answers to any of these problems even one problem will help..all answers are appreciated