One thing - your expenses will ALWAYS somewhow expand to your income. We see our current income as somehow the steady state long term norm. I would do your absolute best to hide extra income from your day to day self and invisibly invest it in a way you don’t even think about

And when you get a windfall (stock grants, acquisitions, etc) unless it’s truly life changing money where you never have to work again, find a good investor (CFP) to manage so you’re not even thinking about it. Or invest it in some future liability like college expenses, home down payment, retirement, etc.