Hi ilikethetrain,
This is gonna be random but its from the heart.

Post what you need to post and dont apologize for it, we WILL read it.
I can relate to your pain and know what you mean about being afraid of everything. I did my time being afraid of everything. I bet mom might know a thing or two about that. Try talking to her about just that for starters and see how it goes.
Kudos to you for being one class away from graduation! This is important so don't miss out!
I can be as lost and invisible in a city as you can in your town. You have to give yourself permission to exist and then go make yourself happy. If you let a boyfriend or other friend define or legitimize who you are, then you are them! Now this is hard to do, I know because I don't have any friends to speak of, only aquaintances.
Sounds to me like its time to ixnay the boyfriend...just sayin'.
You might be surprised to find your friends might rally around you in support.
Its good you know that you have these issues and can do something about them. When I was your age I was too busy self medicating with drugs and alcohol to care. I KNEW I needed some kind of help but the buzz kept me going so I just internalized it all and carried on. Very bad call on my part!
If nothing else, take hold of your issues, no matter how difficult it is, and resolve to love yourself enough to find a solution now! Trust me, 20 years from now you will thank yourself...I am living proof of how a life and family can be destroyed if you put it off.
Wishing you much bravery, strength, and LOVE.
YOU can do it ilikethetrain!