Great Depression. Can someone help?

Well I hope with this forum it will help me get through whats going on. To start I am in a Great Depression. I have gotten through most of the rough spots but at night its the hardest. To start let me fill in whats had me down. On December 17th I lost a friend/boss 3 days before my head boss retired. Both those events had me very upset. My head boss i was happy for because he was ready and deserved the retirement but I really miss him. I stay in contact with him. During this hard adjustment I had a girlfriend who was so sweet and actually was the first girlfriend ive ever had to actually care about me. My past with girls i would never like to repeat. I have been treated like dirt. On December 30th she left me 5 days after Christmas, 2 days before NewYears and 2 weeks before my birthday. The hardest factor of all was 3 weeks before she left me her and i had sex for the first time. THat has been honestly driving me nuts. She was my first and I wasn't hers. She left me saying that "i was the best boyfriend she ever had, the sweetest and nicest person to ever care about her, and i didn't do anything wrong.. She also told me that she started looking at me as her best friend." Isn't a boyfriend supposed to be your best friend and your boyfriend?? On top of her leaving my parents have been fighting constantly since the beginning of December and she was keeping me going when she was still with me. The fighting has backed down a bit. then on January 2nd my new boss for where I work has no clue what he's doing. From that day to now i am still doing his job. I am keeping things running in the theaters as my new boss doesn't have a care and is clueless. So i have been under constant stress and panic when i am at work getting told about events last minute because I am doing the guys job because I cant have it fall on my ass. On my Birthday on January 8th my close work friend passed away from drug overdose. I went to his viewing and you could see how much pain he was in. Two weekends ago from today I lost my Great Aunt and then I lost another one of my friends. This whole time i have been on my own dealing with things at home. When i am at school i have 2 close friends and 2 close teachers helping out during the day. But at night its the worst. I start thinking about everything that's happened and trying to find answers, the worst is with my ex. I just don't understand, the sex bothers me the worst. I admit I'm old school I'm very country. That's my personality, I would have never done that with her if I didn't mean it, I meant it and did it because I loved her. On top of all the depressing thoughts my dreams have been terrible. I don't normally dream. But since January 1st I have been dreaming every night, most of the dreams are very depressing or upsetting to me. I end up waking up in a panic or in tears. One night it was so bad I started listing reasons why and why not to stay around. I'd never hurt myself but that was the first night I've ever thought about it. Even if I thought of more reasons to do it I wouldn't. That isn't a solution. The only really good thing I have had happen this year is on valentines day I got a prom date. The girl I asked said yes, I am a senior. I have tried to talk to my ex and she would only text me and I want a face to face meet I have tried once and she said shes just not ready and it makes no sense... I find it to be disrespectful that she just up and walked away from me. She doesn't know about all the hard stuff I have going on. She's the biggest part to my depression. But the dreams about the friends that have died and the dreams I've had about my ex really bother me. Anyone have some advice? Or at least get me through one thing at a time. The ex being the hardest thing but the deaths being just as hard.

The main thing i feel is just depression, I am also trying to find answers to everything that has happened, trying to figure out how to not feel down about myself, and just trying to get rid of this sad and hurt feeling. and most of all the dreams