ENGINES

So I need some help making this decision I think I want to retake the engine course at school. Dylan was my partner and I let him do everything because I was scared of doing something wrong. Now I want to know what it is like. I knew the engine parts and what they did so I could do it without a partner for some crazy reason just to see if I can do it I want to retake the course. I got an A and there is no reason besides the fact that I want to.....but I don't know if the teacher will let me. And I don't know if I should waste my time but I can do it so Idk HELP!!!!!