Well said Genghis.
Very useful advice here. I have said on this forum a number of times that a second/backup career or job is also a very good idea
I have actually had "sponsored" students in Integrated ATPL ground school some with ZERO flying hours, not even a trial lesson. Others straight from six form with no life skills or experience.
Back in the days of a real BA sponsorship one student decided he didn't like flying just as he was about to take his IR!. BA were not amused.