Becauseprganice chemistry will he terribly hard from a C in general chemistry and calculus will be hard too, I would not take biology yet as all three together are sure to tank your GPA and thus any chance you’d have at the majors you’re interested in.
Ideally, organic chemistry should be taken with zero other hard class, only medium or easy classes, but that’s not a choice you have. Therefore, try to make that semester survivable by taking only calculus and organic chemistry, plus two other classes out consider easy - by the way, even if you completed your general education classes, a class in psychology or art appreciation is always welcome.