Your gender doesn't really make a difference main thing is have you got the money to train! Whatever price you get add at least 10% onto that.
I'm female also and finished my training in 2008, only recently got my first airline job. I'd really advice Modular as it is so much cheaper - I did modular myself. Numerous friends went to the "prestigious" expensive schools and still don't have jobs. If you want to get employed you have to work hard for it yourself, don't rely on the school to get you an interview.
At 30 you're not too old in my opinion. I'm a little younger than you but there were 3 girls in my class between ages of early to late 30's and all have employment. If you have any q's feel free to pm me...if I can help/point you in the right direction I will!
All the best with the training!
Irish