I truly don't believe anyone has a subject they are "bad" at. They just haven't been taught in a way that works for them. My goal as a teacher has always been to teach students in a way that works for them. My students always say that I can take complicated topics and break them down in a way that makes sense to everyone. I have a lot of experience teaching math to those that don't like it and think they aren't good at it.
I currently teach college online while running a small farm with goats and chickens.
I have a Ph.D. in microbiology and have taught high school, community college, and online college. I've taught biology, microbiology, genetics, immunology, chemistry, and AP biology. I also homeschooled my son until he started college so I'm very familiar with math up through pre-calculus.