marcus1290...great advice from Ty-Fry-Typhoon, fabbe92 and B2N2
The only thing I would add is that you also need to keep you determination at 100% at all times. I am 49 now but in my younger days (after gaining my PPL) I to had ambitions of going pro, but didn't quite give it my all. I would say you have to 'live aviation' for the next few years in order to give yourself the best chance of making it...
...and I wish you all the best in what will be a great adventure for you.
Cheers - Keith