As for your gender, that wouldn't be a problem at all. Also your age I don't think will be a problem. I just finished all my training and I just turned 30 last month and in my class was a 35 year old man training too.
I am currently flying right seat on an islander to build experience and some hours and one of the pilots I fly with, is a 35 year old woman. I believe she started in her 30's and only has been flying for about 4 years now.
Like someone said before, you only live once and go for your dream. Good luck!!!