Wow, your personal story reads just like my own. And we're practically the same age (I'm 20)! About 7 months ago I lost the greatest friend I ever had, for no good reason. He just stopped answering my texts and emails, and no longer wants to even look at me. No reason was given. Just pretends I don't exist. I'll admit it was impossible to recover at first. I had to skip a semester of school and was admitted to a mental health hospital for suicidal ideation. Today, it is still a little painful, but in time, everything will pass and you will finally be able to move on. Don't let something like this tear you down. You have the ability to let go in time, you just need to be patient with yourself. This may seem enormous to you now, but in the future this will only be a footnote. Best