You're right, money isn't everything, but when you don't have it, it can be very upsetting.

Don't think about failing, if you dwell on it, you may just do exactly what you don't want to do. Think about doing the best you can, and what happens, happens. I agree with Mad, take a step back, take a moment and relax, don't think about it for a bit. It will come to you, all will be fine! Anxiety over school, work, it's all natural. Take some deep breaths, relax, you'll get through it!

GL and God bless!