I am not on the recruiting team, esp the team sorting the cadet scheme but *anecdotally*, quitting a course isn't viewed favourably. Reason, there's now a question about whether or not you'd stick with a full time aviation course.
I could be wrong.
Jimmy, there was a big discussion recently here about age (lack of it) and the chance of success with the cadet scheme. The general view and once again, anecdotally, the average age of successful candidates is ~27 years old. One thing to note, if you fail at Stage 2 or Stage 3, then you cannot reapply for the NJE cadet scheme. (That restriction doesn't apply if you then go on to get the hours for direct entry)
So, finish your degree. If you do decide to quit, get some gainful employment in an area that will help you gain suitable experience for NJE (or airlines).
You could consider going part time with your degree and get a job. You'll earn some money, get some life experience and get a degree.
