I can tell lots of the NO answers will come from the old school or pilots that went the zero to hero route from one of the big schools which mummy and daddy paid for.
Myself (like many others) had spent many years working in the construction industry saving to fund my training. So I've experienced waking up at 5am for a 12 hour shift 7 days a week in winter.
I've also done my time working for the low cost earning my stripes, Now i'm sitting quite comfortably based in the UK flying long haul for one of the majors.
Would I do it all again? Hell YES i would.