UCLA will be test blind for 2022 admission cycle. You can address any extenuating circumstances in one of your personal insight essays. If UCLA needs more information, they will ask you to fill out a supplemental/augmented review where you can describe in detail the previous issues.
As noted by @Lindagraf, UCLA should be considered a Reach school for all applicants so start from the bottom up and make a balanced college list with several safety and match schools before focusing on some Reach schools.