To the girl I was just a short amount of months ago:
Right now you aren't in the spot you're going to want to be. Your heart is still broken and you are distracting yourself with working more hours than you probably should. While the pay is great, your body and mind are drained.
You have to understand, though, that this summer wasn't all bad. While the breakup was hard, you've made great friends along the way and been able to really start to become the person you want to be (without the fear of disappointing anyone). As much of a people pleaser as you are, you start to put yourself first instead of last - and that's all everyone has been wanting from you for a long time now.
The future you had planned is totally gone. You are not on the same route as you were and there are many obstacles that are going to try and slow you down, but you can't let them. Working more isn't going to kill you, going to a community college isn't going to kill you...you are going to be fine.
What you can't do though, is lie in bed everyday eating your feelings and wondering where you went wrong, because you didn't go wrong anywhere. This is just a small bump in the road, you are still going to end up okay.
Be thankful for the new friends you've made and go out more with them. Enjoy your new (and great) habit of saving money instead of spending it. I would not have believed us if I were told at the beginning of the summer that I have saved the amount of money I have - we are going to get that new car before winter!
Life isn't a straight line, so don't expect it. There are many bumps in the road and while it is not what anyone wants, or most of the time expects, it is a reality and we have to just accept our destiny and take life one step at a time.