Hi hon,
Sorry to hear that work is getting you down. All the advice above is good. I agree with Will that you should sit down with your manager as soon as he gets back.
I know what you mean about not wanting to quit when the going gets tough. I've been in that situation before and I've usually hung on for a few more months before quitting anyway. I found that once that feeling takes hold, it never really goes away. However this is just my experience and we are very different personalities as you know, so it may not be true for you!
Don't forget, though, that moving jobs is one of the easiest ways to get a grade bump. Maybe you deserve to move to the next level with a different organisation.
I wouldn't let your college course hold you back either. In fact, it could be easier in a new job because you'll have the excitement and energy of the new position to drive you, rather than struggling along with all your current stress.


