Could use some advice on how to gain my life back?

In the beginning of May this guy that I have known for a couple of years but have been "seeing" for a few months broke things off with me. Before that we had never argued and got along very well and his friends were happy to see us together. I really cared so much for him and I gave him my virginity. And he sent me a text saying we were done hanging out, he hoped I didn't plan on us getting married, and he really enjoyed the time he spent with me but it was time to move on, he was sorry, he wants to see other girls and sleep around, and he didn't think I would like that. He said if we spent more time together it would be harder to stop and life was too short for that. He soon after deleted me from Facebook and I haven't talked to him since. He left with with an extremely broken heart for he was the first guy I let my guard down for. It doesn't make it any easier since we have many mutual friends and I have to hear about him and I get left out the group. I find it hard to be alone and I cry often. Can't sleep in my room anymore, it scares me to be in there because that's where I was when I got the text. Songs and tv shows that remind me of him make me feel sick and sad. My car broke down a couple of weeks later and I've been having to find rides since. I have some moments of happiness around friends but I'm just sad... and I'm usually not like this. I don't feel the same. I constantly compare myself to others and degrade myself. I can't help it. And my sister is going through an emotionally abusive relationship with her boyfriend and she has abandoned me and she has been thee for me my whole life until recently. Today I got so stressed I started crying and shaking and I threw my phone as hard as I could into the wall and now my touch screen is shattered and hardly works. I'm just so overwhelmed with life and I don't know where to turn. I feel like a burden to everyone. This new guy has come into my life and he is so good to me and its hard to get close to him and he has said how much he likes me and will give me as much time as I need but I'm just not ready. And he just doesn't seem like my type and I'm scared to hurt him. I actually kissed him but it just made me miss my old guy, it didn't feel right. I find myself stuck at home alone (not a good home life) often with no car and none of my friends seem to want to hang out and being alone makes me so sad. Going to work is my main escape. For the life of me I can't remember what I was doing to be happy before he came along. I would give anything to be over him and not feel so alone. Everything has been going wrong and I just don't know how to deal.