Cool good start.
As suggested on small teams it’s more about who is willing to pick up the ball than it’s about expert skills. The team I’m on over the years there is probably not an area of the game design that I’ve not been involved with so if looking for skill look for those who willing to go where angels fear to trend. 
I can’t tell you how many times I’ve broken something.
Another skill is having a sense of humor.
Long way of saying if time is on your side don’t worry about what you think you need as someone who’s been there and done that it will come your way and usually in away you would never have expected.
Just keep swimming. 