I disliked school. I did have a few great teachers. I never did anything bad in school although I did have a conversation with the principal once for being noticeably late forty times.
In Grade Twelve there was a Calculus course offered in my school as an elective. I had taken math in Grade Eleven and enjoyed it. The teacher was Heidi Robinson. I needed an elective for Grade Twelve and she was going to be teaching it. There were few electives in my small town school and I figured an academic subject could not hurt.
The good teachers stay with you, as well as a few of the bad ones. She was one of the great ones and I learned a lot in that course and I understood the material.
After high school I took courses at a community college with the aim to transfer those to a university to complete a degree. One of the core courses for my desired program was Calculus that I had to take in my first year. The instructor was really bad (I remember her name but I will not mention it after all these years) however it was almost a carbon copy of what I took in Grade Twelve so I did really well.
I never saw Mrs. Robinson after high school but if I ever did run across her I would thank her. I never did use Calculus for anything practical and would have a hard time remembering how to do any of it now.
I did take a Linear Algebra course twice. I did not not fail it. At one institution it was a two credit course. When I transferred to a different institution they did not accept the course as it was a three credit course there, and they did not recognize the course I took. I had to take it again and it ended up being the exact same course. I enjoyed that one as well.
I liked school once I was out of grade school and I did get a degree.