what would you do in this situation?

I'm currently a senior at my high school and am looking forward to going to college next year. I have gotten accepted to my choice (a division 2 college) and want to play baseball for them since I love to play the sport. Here's the problem...it cost 28,000 to go and I have nothing near that amount nor does my mother. I don't even think she makes this much in a year. They told me that since I didn't have good SAT scores (math) but wrote a great college essay that I would need to go to their summer preparation course. This course cost $150 (I have the money) and they need me to pay by May 1st if not I will not be eligible to go anymore. Yea I know "just sign up for FAFSA" and I did but I messed up and need to fix it before any college can receive it and let me know how much money/ assistance I'll receive. The FAFSA thing takes weeks yo receive information back. So my question to you is, should I just pay for the summer course without knowing how much help/ assistance I will be receiving from the government and fix my FAFSA (its going to get done regardless) or should I just go to a community college for two years and transfer out ( which is what i am trying to avoid since I will not get the same baseball training or experience). I need some help man I'm really stressing over this. Thanks for hanging in their and reading this and I appreciate any advice you have to give me.