Hey Man have a read of this first then ask the questions
Frequently Asked Questions : Training and Job Prospects
I managed to get a proper well paid helicopter flying job that I consider a career in the end, but it was way harder than I expected it to be, spent far more money than expected, far more luck was involved than I expected, and enormous amounts of messing about being pissed about by amateurish, egotistical idiots along the way.
but if its a real passion why not have a bash !! you only have your marriage, kids, house, nice cars, holidays, leisure time amd all your money to lose (but thats worst case) it will be better than that I should think, probably
Having said that, I am really happy with my job now and am really glad I changed careers, its just the process that is a bit tough sometimes.
regards
CF