ECs Jr year???

Hi,

I am currently a junior in High school. I wanted to know if what I do for ECs is ok, and what I can do to improve my application in this aspect. I have a lot of different ECs but I’m scared the admissions people will think I did them for college apps, but I did so many different things because I was unsure about what I wanted to do with my life.

List of ECs:
Rowing (4 years, varsity letter and team coxswain)
Color Guard/ Marching Band (3 years and a varsity letter)
Science Olympiad(1 year, this is the first year of the club)
Solar car team(1 year)
Mock Trial(2 years)
Peer to Peer (2 years)
Model UN(2 years)
NHS
Volunteer at a VA Hospital and an older citizens center(4 years)
Do shawdowing and research at a brain lab at a local hospital (1 year)
I tutor kids for bio and the ACT(1 year)
Idk if this counts as EC but I take care of younger siblings
French club(2 years)

I have only won a French award, top 3 in rowing at a few regattas

Academics: All AP and honors classes

Advice on how to format this for the application so it doesn’t look like I did it for college apps, and that I’m actually passionate about what I do.
Thanks!!