In the big picture, $800k/year is not that much. It's good by any standard, but there are younger people pocketing more money by running a snack factory.

Money is a tool to achieve your goals, but should not be the goal in the first place. Once you have a certain amount of money, your goals and identity tend to revolve around that money.

There are plenty of other goals to achieve - creating works of art, making lives better, physical accomplishments (winning a sports medal/Ironman/climbing a mountain). At a certain level of wealth, you tend to add traveling, eating at Michelin restaurants, buying cool stuff... but you should check whether that's what truly makes you fulfilled or is it just the low hanging fruit?

Personally, I like to climb the skill tree, just building stuff better/faster/cheaper. I always admired people who could build stuff well. I somehow don't feel that Silicon Valley is the path to doing that -- you're just likely to end up spending your days dealing with PRs and building features around some focus group rather than listening to what users really want.