A little worried

Starting in the fall I will finally be in my last year of school. The problem is I will be doing student teaching, and my school encourages us, the students, to not have another job because the workload will already be hard enough as it is. So I will quitting my job at the end of September so I can focus on my schoolwork. All this summer I am trying to budget and save so I will have enough for tuition, books, car payment, and gas. My mother already said that she will pay for my tuition in books, and I will pay my car payments and gas.

My problem lies with the fact that I need to save up at least $3,000 dollars to make it to next June. I am working more this summer, but I just don't think that it is enough to earn that much money. Also, I have a cat that I feed and take care of so that's money out of my budget to care for. Then I have to take this GACE test to be certified as a teacher and it cost $85 dollars each time I have to take it. I need to trust in the Lord that he will provide everything, but sometimes it is just so hard to do that...