Hi,
Well, unless you have the money, I would not personally encourage you to become a professional pilot. Why? Because initial training will cost you about £30-40k, and with a CPL/IR/MCC and 250-300 hours, your chances to get a decent enough job are very, very slim. Do you want to bet such a big amount of money on a "maybe" or on luck? What will you do to pay your loan back if you do not have a job? Worth thinking about it.
FNav