I've seen studies on exactly this... I think it was US based, but basically life can be really stressful up until the household has an annual income of around $75K, money can't be happiness, but it can alleviate a lot of stress, which can allow people to be happy, but then after around $120-150K annual income, more money doesn't increase happiness at all, if anything, more money diminishes happiness because your mindset changes from what makes you happy to trying to keep your money and/or mistrusting your relationships. Those numbers probably aren't accurate, but I think I trust the general gist that chasing money after a certain point makes life worse.

I'm much better at planning the future than I am enjoying the now, and I'd say that comes from a lot of uncertainty growing up, but once I get to a position where my finances are set and forget then I don't think about it again. Relationships are far more important to me... and I like to think that I've made things slightly better for the planet and the people around me.

Sorry you had such a dodgy business partner, but it is a really important lesson for everyone that it's honestly never too late to start over.