Decision help!!! Advice please!!!?

I took summer school for a math course because I might need it as a prerequisite for a university that I'll want to get into for psychology. Not all universities want it as a prerequisite though and I'm very bad at math. Even when I try hard, I still do bad in tests. I studied so hard for a recent unit test and I still got a 60. Currently, I'm getting a 50 in the course, because I failed the first unit test. Everythings moving so fast and I feel like I just cant follow at the pace. Mid terms are at the end of the week(there's only 20 days for the whole course) meaning after 10 days of cl we're alreaady getting midterms. I could still drop out, but I'm still thinking about whether I should stay and retake it in normal school and this could be a little 'preparation' for me for next year, I'll already have a bit of knowledge of some of the material. What should I do? Or will it only get harder in normal school? I still have the option of not taking it at all and dropping it. I just dont know what to do, I'm trying to do my homework right now but I feel so overwhelmed, I dont know how to do any of it. What should I do? Any advice?