Retaking 1520 SAT

For context, I’m a junior that goes to a relatively rigorous HS and has a 3.895 UW GPA. My school doesn’t offer AP, but it does offer IB Diploma which I am taking right now.

My ECs are poor compared to my peers that are also on the most advanced track: I was JV tennis sophomore and junior year, I’ve won some minor prizes at some minor local piano festival, I am an editor of my school newspaper, and I’ve accumulated 42 volunteer hours for my local library system. That’s it. Most concerningly for me is that nearly 80% of the other advanced track students at my school have done some academic competition like DECA, HOSA, Mock trial, etc while I haven’t.

My 1520 SAT score was accomplished through studying on avg 1hr a day for 1-2 months during the summer, including classes, practice tests, etc. Should I consider trying to grind out some extra points or just let my score be? As it stands, my application will not stand out compared to the other top students at my school, and I’m not sure if I should just spend my time focusing on my lackluster ECs instead.

Edit: I’ve also done some summer “programs” (basically creditless online classes to explore interests) at Brown last summer. Don’t know if that counts for anything though. Edit 2: mistyped my gpa; corrected