Winning the stock market is guaranteed unless society collapses just by investing in a broad market fund. You don’t worry, you just make money. 150k is not enough in many cities to have a family, unfortunately, and you also can’t run for charity.
You don’t need to use your legs after the first bit. You get in shape, and then you have well over 150k, not losing to inflation with no raises ever again. You’re done.