Yeah. I always lived well under
my means. No Ferrari, no Gucci clad girlfriends, but classy, grounded and sensible ones instead.
I saw many of my colleagues blown to bits by living a life to 250% of their income until the crap hit the fan, and then everything
seemingly fell apart for them (lost their wife (who couldn't deal with the loss of a 6 figure lifestyle), house, car, children, career, ... the works).
p.s. I lived for about 10 key years (in retrospect) from say 25 - 35, advancing well in my career but not allowing myself a significant change in my lifestyle. In any case I was working too hard to enjoy it. I saved a lot, and it all went into buying central London property
of which I am the landlord.
I'm not bragging (as there are definite pros and cons as should be clear, plus for what ever I've manged I know plenty who've done it 10* more sucessfully), but it left me a 'gentleman of leisure' and set up for life to do pretty much as I please by the age of 40 or so. For a 'school drop-out, useless at exams, likely going nowhere', I do admit to now and again having a last laugh to myself, versus the naturally scholastic of my peers, 25 years later, still at it 50+ hours a week to maintain their banking careers, Porsche's and $wives...