How do I wisely use my time this summer?

Hello, I am going to 10th grade this fall and I was wondering how I should use my time this summer. I want to do something that will build my resume and potentially get me into a better college. Any suggestions are welcome. Thank you.

I have responded to your similar thread regarding the internship. Thanks for your question! You may be able to find your answer in this recent article from College Confidential, which covered this topic in depth. You can read it here: https://insights.collegeconfidential.com/boost-college-application-summer-vacation

Colleges like you to do something productive over the summer.

Usually that includes:
Getting a job
Volunteering
Babysitting siblings
Academic Camp
Other type of Camp
Taking a course

In the world of Covid, those may not be practical.
Can you take an online course (not for credit)?
Practice coding?
Practice a foreign language?
Volunteer at a house of worship when no one is there?
Do art
Build something in your yard
Plant a garden
Practice your instrument
Get in shape
Read Books

But definitely include: Practice/Practice/Practice for the SAT/ACT