My only advice is if you can't afford to pay for the flying lessons, don't proceed until you've saved the money. Certainly don't rely on the assumption you'll get a well paying job flying helicopters shorty after qualifying and you'll be able to afford to pay off a loan, because the reality will probably be different. But once you are financially secure then sure, follow your dream. There's nothing stopping you succeeding with the right motivation and the financial resources behind you.