If you have extensive experience in flying, you could become a Flight
Instructor. You will need to be mature in personality, be patient and
enjoy teaching.
You will like dealing with people and communicating clearly. You may
be teaching the theory of flying or spend many hours in the air with
student pilots or qualified pilots doing navigation exercises or endorsements
of different types of aircraft.
In more advanced training for an Airline or the Defence Forces, you
may be working in a simulator and training pilots to handle emergency
situations or air combat.
You could also become a Flight Instructor in an Aero School, build up
your hours while being paid and use this as a pathway to flying for
a major airline.