Soon to be a Junior, only have 80 credits completed?

I bombed Freshman year, didn't do homework thus failing all tests, etc. Anyways, I did much better this year, I still failed math both semesters. I finished Sophomore year with only 80 credits. I was told summer school would only accept 250 students and Junior's and Senior's are top priority. Apparently, that must've been bull**** considering I know about 5 Sophomores that are going atm. They had an online credit recovery thing, so I took the class for math but it was awful and I didn't like it at all, you had to have x number of minutes every week and if you didn't you'd be dropped, at the end there was about 10 people left from a 30 person class and I got dropped also. Now next year I'm doing 70 credits, same with Senior Year leaving me with about 220 credits (if I don't fail anything) I think you need 230 credits to graduate, so I would have to take Summer School either Junior Year or Senior Year or maybe both. Am I in big trouble? I've changed my whole attitude since Freshman Year I do most of/all of my homework but I usually do pretty bad on tests...I don't study though. My whole schedule switched 2nd semester when I switched out of my French class, so I got a new Algebra 1 teacher (Yes I suck at math) which was strict, extremely boring, and his tests weren't fully multiple choice ever. The 2nd day I was in the class, I had a 50% already since I failed the first test he gave. I would do my homework always, but still fail the tests until I had like a 35% which then I stopped doing homework the last month or two because there's no point in wasting time on it when there's no way I can get it up...anyways Thanks