So this is my second year of french and i'm a junior but my first year of french i was a sophomore (obviously) but i was still immature and did not pay attention or care now i struggle in french two and don't know how to catch up.
You could use Duolingo as a supplement to your French class. While Duolingo won't make you fluent, it really gives you a good basis for learning a new language.
So I don't know where you are, but where I am the core curriculum for each grade is available online. It might give you ideas of what areas you need to work on most. Could you see if someone you know took notes/ is willing to tutor you?