Dropped classes bad on apps?

<p>Hi, so I’m stressing out about college apps right now. I recently dropped AP CompSci because I couldn’t understand anything, which is pretty unusual for me. I finished the first quarter (technically called Data Structures 1) and got a C+ in the class since the teacher doesn’t round. I also had to drop because I got extra shifts as a lifeguard at my school and I’m self-studying AP Psychology as well. Does this look bad on college apps? Should I explain this in my supplements? I’m a pretty good student: lots of ECs, leadership, awards, community service, mostly As and some Bs on my transcript, and I will have taken 10 AP classes by the end of senior year. I’m looking at UCs, CSUs and some private colleges in California (not Stanford haha). PLEASE HELP? :D</p>