Self study for f=ma? Had static competitive math background

Hey! I am currently a freshman in high school and I want to self-study for physics Olympiad (starting from f=ma, hopefully will advance). I had little knowledge in physics (I only took a little basic concepts in physics in sixth grade, high school doesn’t offer until soph year) but I have had decent experience in math competitions. I qualified for USAMO as a freshman this year (even though bombed today’s USAMO) and went to different math competitions (eg. Math Prize for Girls) and got decent places.

I plan on self-studying physics starting this week (after second day of USAMO tmrw).

So I would like some advice from you guys, who have studied for physics Olympiad (the f=ma system tbs), which book/website should I start from? Do you think it is possible for me to succeed in physics Olympiad as much as in math?

Giancoli is good for basics of physics needed for physics Olympiad. After that, it is mainly just doing practice problems.