I appreciate you frustrations, but would it not be possible to negotiate with your previous employer to return on a contract basis.
If bad came to worse you could flip burgers or pull pints.....
All im saying is that being in a bit of a sticky situation for a few months is worth it if you will soon be staring on your career, and it not instructing or doing air taxi work....it'll be flying a brand new 737-800...and be earning good money doing it in a few years. To me half a year in limbo for this is a small price.
BTW... your too young to be worring about an income....buy and old van and a surfboard and hang around Cornwall till you get the call