Well done, Joe! Glad you got started investing for your daughter's future while she is still young. Have you looked into 529 plans? They are tax advantaged for school expenses (no tax on gains like a Roth account). That would hepl the money go even further. Vanguard and others have these accounts available. You can direct the investments (such as choosing an S&P 500 index fund) and set up automatic payments. I've got 3 for my children.
In case you aren't familiar, you can read about them here: https://investor.vanguard.com/529-plan/