Should i do flag football?

I suck at gym football but at the interests meeting they said everyone we would be playing against are also fairly new and at the same level as us. All the girls looking to join also said they aren’t good at fball, and it’s some of the girls in my grade who are really just doing it for fun. Plus a lot of my friends are playing, so it would be fun. The only issue is i’m not that athletic AT ALL. I get winded by a flight of stairs. I’m a tennis player during summer-fall but that doesn’t require as much stamina as flag football.