Chance me for UCLA, UCSD, UCI, UCD

I’m currently a junior in high school. Because I did not take much interest in colleges before junior year, my ECs are abysmal. Is there anything I can do to improve them?

SAT I: 1910 (Going to retake)
ACT: N/A
SAT II:
Unweighted GPA (out of 4.0):3.92
UC GPA:4.25
AP : Biology, Calc(AB), USHistory
Senior Year Course Load: AP Art History, AP Calc(BC), AP Chem
Major Award:

Subjective:
Extracurriculars (place leadership in parenthesis): 3 Years of Track(Varsity) /Cross-Country
Job/Work Experience: 1 summer waiting tables
Volunteer/Community service ( place hours in parenthesis): 40 hours of tutoring

Intended Major: Finance/ Economics

UCLA/UCSD: Low Reach unless you retake your SAT and aim for a 2100.
UCI/UCD: Match

EC’s are very generic, so concentrate on your essays and make those outstanding.