How to convince my parents to let me drop AP Calculus AB?

I am a Senior in school who is doing well in all classes except for AP Calculus AB. I am passing Calculus, but have a C in that class, while the rest of my grades are mostly A s with one B+. Calculus is the only AP class I m taking this year and told my parents that Calculus is stressing me out and is a little too much for me right now, but they were saying that taking that class would help me a lot in the long run and prepare me for college. Since I m a Senior in high school, I feel that I need to relax some, as the rest of my classes are pretty easy other than Calculus. My parents, Calculus teacher, and counselor know that I m trying and understand that it s a challenging class. My Calculus teacher and counselor are ready to let me drop that class, but my parents are iffy on that choice. Please tell me know I could convince my parents to let me drop AP Calculus AB. Any advice would be appreciated!! Thanks!!