How much is in your 401k? Don't answer. Read up on the rule of 55.
How much in investments and liquid assets do you have? Don't answer that either.
If these things are substantial, go see a wealth manager. I should have done this sooner, but still ended up in pretty good shape from making solid investments.
I am retiring this year at 59, most likely. I could have retired last year. A work at home gig a friend is running is coming up on the market soon, that could be pretty sweet, so that may change. (Also I are a tech/high-tech/engineering dude.)