Chance me for Connecticut College and similar universities and colleges in terms of competitiveness.

I’m from a third world country so my ECs won’t be very impressive, but kindly give me opinions and criticize. Also I’ll be looking for full financial aid so please consider that as well.

GPA: 3.4 (Could not perform well first year of A levels due to some problems)
SAT-1: not taken yet but hoping for 1500+.
Rank: 1 (O levels rank since my A Levels school doesn’t rank the conventional way)

ECs:
Co-founded the music society of my O levels school.
Playing guitar for 7 years (self-taught)
Founder and CEO of an NGO.
About 100 hours community service towards education since it is a big problem in my country.
Research paper in solving the energy crisis of my country.
Honor student in O levels school.

Feel free to criticize me. Suggestions will be greatly appreciated.