I am good at general chemistry and I have gotten amazing grades in general chemistry too. I used to be a tutor in India and I even taught my friends the concepts they had doubts about.

I would start with first understanding the problem of a student and where they're lacking and then I'll tech them with a concept and basic of that problem to enhance their understanding in that topic. I will become friends with them first so they feel comfortable around me and can openly ask me for their doubts.