If I have 500-600 hours of service and sports, do I still need other ECs for top UCs?

<p>Hi, I have a really decent amount of hours (nearly 500). I also have done 4 years of cross country and 2 years of track, but I have only been JV.
My question is, are these “ECs” suffice for top-tier UCs (Berk, LA)? I never was interested in joining music (which is obviously very typical amongst these CC members) and have only gotten one or two awards. Great grades and a lot of APs, 2100 SAT, but these aren’t ECs. I am economically disadvantaged, if that even counts, and have had to overcome a lot of personal adversity, for what it’s worth.
I know that Berkley and UCLA are prone to weigh ECs especially high. My concern is that I don’t have enough of them.
What are some things that I could still do, given I’m a junior, to fulfill their expectations?</p>