Friend-Breakup and Battling Depression

Around December I became friends with this boy and we became inseparable. We'd talk literally every single day. I felt like everything was perfect and I was extremely happy. Then one day he told me about this beautiful girl he liked and I was so jealous for some reason. Well, I realized I liked him. A lot. And it'd never work, so whenever we got onthe topic of romance I'd change the subject. Eventually he got suspicious and really rudely confronted me, "demanding" to know who I liked so I got fed up and told him. Then he said "Thanks for being honest. I think it'd be best if we no longer talked. Hags" (this was early July). I was so heartbroken and mad and sad and so confused. Everything suddenly crumbled all because I liked him and it was just the worst. I convinced myself to like this other boy that actually liked me back but I just don't feel like I can ever trust another guy again after how badly my "friend" hurt me :(

Then this new school year started and I got the most awful class schedule and I don't see my friends or anyone I know at all. I just feel so lonely and lost and like nothing is going right. On my first day I tripped in front of the whole class, my second day the guy I now liked waved to me but I frozelike a complete fool, the third day I saw my ex-"Friend" and awkwardly waited in his class line only to realize 10 minutes later I was in the wrong line, and the fourth day, (today), I missed my bus and accidentally said a bad word and my teachers saw and looked at me really disapprovingly. On top of that, I just realized I lost my new school login password and forgot my homework at school for my new honors class. I just feel so emotional and depressed. I feel like everything is crumbling and I feel so lost and lonely.