I'm technically not really in pure index funds, I just wanted to avoid trying to complicate my thoughts. Nearly all of my investments are in VFORX or Schwab's equivalent, and have been for a long time. So they are really composed of total market funds, bonds, etc, and Vanguard changes the ratio a bit as 2036 approaches. So while not really an index fund, from my perspective as a lay investor I treat it like that and consider myself an honorary Boglehead. I just put money in and forget about it.

I looked at the fund (VFORX) here: https://investor.vanguard.com/investment-products/mutual-fun...

It looks excellent for your needs, and have an incredibly low expensive ratio of 8bps(!). Currently, it is 75% stocks, and 25% bonds. Don't worry about a bubble in the stock market.

EDIT (after reading many, many more negative comments below):

The problem with discussing your investments online, there are a million negative replies. No one ever says: "Yeah, looks pretty good. Leave it alone." I'm here to be that guy.