cosmos summer program 2018

I want to apply to cosmos ucsd this year so can anyone tell me if i have a chance of getting in to clusters 7 and 8 (i know the bio clusters are competitive)

weighted gpa: 4.375
unweighted: 4.1
grade: sophomore
EC: counselor at a science camp, in 2 science clubs at my school, national honors society at my school, cheerleading, winner of a science fair, walked for research for schleroderma disease, health and environment academy at my school, tutor for high school math and science

i think ur good, work hard on ur essays cuz they’re pretty important.

What are the best types of things to write about for the personal essay