Do we have to report ALL of our AP scores to UCs in our app? I did really poor on some of them and I obviously don’t want them seeing those AP scores. If we do have to report them, do we also have to send them in? Is it like the sat/act deadline where they want them in before january or is this deadline later on in the year? How do I even send them? through college board?

You do not have to report AP test results on your UC app and you do not have to send them until you enroll in your choice college for credit.
You send them through College board after you graduate.