Sports?

I’m deciding whether to continue playing lacrosse this year (current junior), and my big question is whether I need it to get into a good college (first choice right now is Georgetown - I want to study political science)

Sports-
I played freshman and JV volleyball in 9th and 10th grades, and did not play this year.

I played JV lacrosse for two years, was a captain last year, and will be on varsity this year if I play. I’m considering it for exercise/teamwork, etc. but I just don’t love it and it’s a hugely stressful time commitment.

Other ECs -
I’m also a competitive debater (since 9th grade) which takes up a lot of my time. I mentor middle school debaters every week, but I won’t be able to if I play lacrosse. I’m in French NHS, I have a summer job (working with kids the last two summers, working with debaters this summer). I also have volunteered at science camp for 1 full week (~100 hours) each year.

Are these strong/diverse enough ECs for me not to play lacrosse? I like lacrosse games and I’m kind of dreading practice. Playing lacrosse is 12h/week, which will take away time from debate and debate mentoring, as well as school.

So, any advice? Do I need lacrosse to get into a good college, or is a strong commitment to debate and working in the summer enough?

No.

Well, that plus good grades, SAT scores, strong essays and top-notch recommendations. Do EC’s that interest you, not to impress a college

If you are not planning to play a sport at a Varsity college level, than any sport just counts the same as any extracurricular. It sounds as if you are very committed to debate as an EC- your activities in debate shows that you are passionate about it. That should be good enough for college apps. Don’t do a sport just because it might look good on apps.