I am going through a hard time, any advise?

Hello everyone, I have a lot of problems going on right now, I just got fired from my job for false accusations. I saw this coming. When I started this job a came home everyday crying because of the bad treatment from co-workers. I stuck it out. Shortly after they told me to my face I am doing a good job and have saw nothing wrong with my work. They went behind my back and made false accusations to my manager that they could never say to my face because they no they are lies. My boss ended up firing me. I cried a lot, thinking why? Why is this happening, I am such a good worker, I do everything they ask and never complain about anything. Now, I was furthering my education but I needed one year of work experience in order to be accepted. I have taken many, many credit hours and this school that I won't be ever be able to use since I do not have the one year of work experience. Now my best friend, when I need someone to talk to, has disappeared, never returning my calls. Just not even to say she's busy, just plain ignoring me. I cannot understand how everything just came all at once, my career, education, and social life, all gone. Why? I don't know. Please help. Thanks.