Help me decide a sport

Hii everyone i been thinking of changing my extracurricular for awhile now, it's Been bothering me alot... anyways for context I been stuck in Red Cross for like a year now, and not to be rude but it sucks, it isn't me.

I been thinking of switching to tennis or track . I really want to join tennis but firstly I never played it in my in life , and secondly I'm scared that I won't be able to make friends since I'm pretty sure everyone has their own friend group. Also I was wondering to anyone that plays tennis, how long did it take u to rally consistently . FYI idk if this helps but they are short on players and I play badminton so maybe that speeds up the process.

For track, I mean I'm not fast nor slow and I don't have the best nor worst statmia, I heard that if your not very althetic, joining track is the best option. The bad side is that I don't like certain people inside.

Which one is the safest options in your opinion? Should I just stick with something I'm familiar with or should I try someone I'm interested in. FYI I have like 3months max to figure it out and prepare for trials so help please ..