I'm an old girl, so I can't help you with the student loan question. There is a thread on the Personal Finance page with others with student loans, so they're probably more up to date on who to call or what to do.
Great job on the grocery shopping. Breaking even is not a bad thing. Write your list and stick to it.
As far as acceptance to your financial situation, you just have to go with it. Nothing or no one is going to change it but you, so stick to your plan, and work your plan. Burying your head in the sand or pretending like you don't have loans is only going to make things worst, so read, or lift weights or watch movies-whatever you like to do to relax and think about other things until it's time to make another payment, and keep chugging away. As you know, there are a ton of people tackling debt (including me and my new car!), so just keep at it. Have a good one and good luck with your interview. I loved teaching math as a part time job until I got into grad. school.