Getting off the waitlist for UCB

Hi! I’m asking for advice from anyone who can provide some insight about getting off the waitlist for UCB.
Frankly, I’m not too confident about the outline I have currently. The typical letter would include some awards or outstanding achievements that were attained after applications. However, I’m kind of at the disadvantage in that aspect due to my situation (family, upbringing, living situation, etc.).
PMs are encouraged for more context!
Thank you again!