How are my ECs for top tier schools??

Thanks for anyone who helps me out with this. How are these ECs for schools like Dartmouth and other Ivies?

Golf (Varsity golf junior & senior year) - 4 years

Marching Band - 4 years

Honors Band - 3 years, ‘Concert Band’ for my freshman year

Jazz Band (4 years)

Local College Symphonic Band (3 years)

ILMEA District (hopefully/possibly state) Oboist (junior & senior year)

Model UN (hopefully with some awards by the end of high school) 4 years

UNICEF (hopefully president/vice president) 3 years

NHS (hopefully a strong leadership position) 2 years

I also want to volunteer for Rand Paul’s campaign in 2020 if he runs, and if not then another conservative nominee.

I am also considering being a freshman mentor at my school my junior and senior year, but don’t know if it will really benefit my application. It is a huge time sink because you help guide a group of freshman with lessons every day after school and it gives lots of service hours, but like I said it’s a huge time sink so I don’t know if it will be worth it.

How are these ECs? What can be added or improved upon? I am a current Sophomore by the way.

Thanks!

Just to clarify I try to focus in on music since I enjoy it and some clubs which relate to my desired major (international relations) as that is a career I am really interested to pursue.