Hello! Your experiences are so typical for a teenager. I think everyone goes through this. I was lucky that my parents did not attach much importance to academic performance unless it interfered with getting a passing grade for college. I carefully studied all the subjects that were important. I gave all the third-party ones to the nerds from the writing service - https://www.writing-expert.com/custom-essay.html I passed important subjects well and did not waste time on things that would not be useful to me in life.