It might still make sense to read a book or two about investing, to make a good decision about asset allocation.
Spend several hours thinking about it, planning, and discussing with people here.
Then, execute it, and now that you're done the hard part,
-if it's something like a balanced fund or retirement fund, forget about it for several years until your situation changes enough to change your plan,
-if it's some simple version of Boglehead or slice and dice, spend one hour every two years rebalancing.
The second one above need not be complicated. It could consist of just three Vanguard funds: TIPS, Total US market, and International. Which international you pick might depend on tax situation and if fund is in taxable account.
If you invest in a way you don't have a good understanding of, you might choose something inappropriate for you, or worse, sell low if things go badly.
If you aren't willing to do learn about investing, it might make sense to find a good fee-only finanacial planner, and set something up where you don't need to keep going back, if possible. But finding a good one might be more work than just learning about investing, if you believe people's posts about financial planners.
