I managed mine very badly during my 20's and 30's (lots of consumer debt). I'm 55 now, mortgage free in single digit years, healthy investment accounts for retirement and no debt.
There are few secrets, just common sense really:
- Live within your means (spend less than you earn), avoid debt.
- Corollary: Have a good paying job (tech is handy for this)
- Save early put 10% (at least) of your gross salary into investments such as low MER ETFs, re-balance every 6 months - or use a Robo Advisor that does it for you.
- A partner/spouse helps immensely (and you both need to be aligned wrt goals and spending habits!)
- Balance savings and the future with enjoying life