The RAF run the most expensive flying school in the country. They also have a high failure rate and appear to have avery expensive and inneffective preselection system, or poor instruction. Lots of good people do not complete the course.
Such results would not be tolerated in civilian life where value for money and accountability are inportant.
I would suggest you stay where the garunteed income is and get civil licences and do job search in your own time before killing the goose that lays the golden eggs.