Sign up for the SAT and ACT!!!
All rising seniors need to take the SAT and the ACT twice their junior year.
All rising juniors need to take the SAT and the ACT once their sophomore year.

Here are the links to sign up.

https://www.collegeboard.org/

https://www.act.org/content/act/en/products-and-services/the-act.html

All rising seniors that want to play college sports need to register with the NCAA Eligibility Center at https://web3.ncaa.org/ecwr3/