DANCERS!!!! Should I join the competitive team?!?

I moved to a new town and I went to sign up for dance the owner was asking me about my skills and asked a couple questions about what I knew and what I could do. She asked if I would be interested in joining one of the competitive teams and even emailed my mum the contract for us to sign so i could join. And I've been super stoked! She said only like one girl on my team would have done comp before so I shouldn't be worried, I'm just nervous that i wont be as good as the other girls, but I've been told I'm a really good dancer too. I'm not sure yet. Am I just over thinking? Opinions!? (Also this studio isn't super competitive its just some of the smaller competitions and like one or two big ones)