I'm in the same boat.
Investments are doing great, but if I didn't already use the knowledge I gained growing up poor to live a very thrifty lifestyle, I would be absolutely screwed. Most people have no maneuverability in their budget and either have to work inhumane schedules or go without, in the wealthiest country in the world, and all because we have a couple of thousand billionaires. (And the two ruling parties exist solely to service said billionaires.)
Even so, I'm contemplating going 80%-90% into money markets and cash because while the performance of the market is great in recent years, it also scares me that it's propped up by seven companies built basically on hype only and no profit, which presumably cannot last forever.