We are 24 and trying to foster to adopt a 16 year old girl.

I can totally relate. Im 25 and my fiance is 27 and we adopted our son last year. Hes now 16. Theres gonna be people who will tell you that your to young and your still a baby yourself. Dont listen to them. Your doing an amazing thing. I hope everything works out for you guys. Wishing you all the best.