hi,
I am over 30, and I suggest to all young student (around 20yo) to be very carefull with aviation and to not give up your university or yours professional training (IT,...) for aviation.
I know a guy with 20 years old, with high school degree, he missed to be enroll in an university cus he wanted go to the USA, and a few weeks later things are already not working very well for him.His friends are studing hard to become doctor, electrician,... during this time, he is still at home hoping to find a school in the states.
then he didn't think about the medical, there is still a risk that a JAA doctor find something bad in you.
the medical is much easier in the USA or in australia than in Europe.
the best would be to pass the 1st class before to spend lot of your cash in a commercial training, and have a good degree as a backup in a field other than aviation.
then consider than when you will be finished wth your commercial training, maybe you are in a good time, or you coud be in a 3 rd world war with N korean or Iran and who know how things will be in 2-3 or 4 years.
My advice is not to rush your aviation training, wait to be 25year old, finish your degree and then you will plan your avaition training.and don't sell your house...give it for rent and get a monthly cash!
good luck! (sorry for my bad english)