It will be flight instruction
6-7 day week flying 3-4 hours on a week day and 5-7 on a weekend proberly doing a 10-12 hour shift at the school.
At first you think its great your log book fills rapidly and your actually getting payed to fly!!!!!
Then the fatigue sets in and the constant bitching and unpaid extra things that CFI's think are part and parcel of the job start getting right on your tits.
Then its time to move on....