I hadn’t ever taken any type of precalc before this year. In fact, I was abroad for my whole junior year, and while you’d think math would be fairly constant between countries, turns out that it isn’t 
That being said, I’ve always been pretty good at math. You definitely know your mathematical ability better than I do, and if you say you both struggled with precalc and hated it, it’s probably not a good idea to cram the AP version in along with four other AP classes. It would probably be better for you to take it along with a less challenging total course load (if that’s what you’re planning on for senior year). Even if you’re not still an expert in the precalculus concepts you learned last year by the time senior year rolls around, IMO it would be worth delaying the class to focus on other courses during junior year.