will I be able to obtain a job in order to survive
the cold truth is that you might, but you might not.
as I would like a career in aviation but I cannot afford to let down my family?
that makes it even harder.
You've got to be sure to understand that it will be quite possible to spend the money, do the hard graft, and not get a job at the end of it all. Do you have a plan if that happens? If so, fine. But that is the reality.
Not trying to spoil your dreams, but it's important to go in with both eyes wide open.
Not an easy decision.