Dave Ramsey is good for getting out of debt. I used him and it worked. But as you get more knowledge, Dave Ramsey seems to lack sophistication when it comes to investing.
While deployed, I found the Bogleheads Wiki page and started reading. Within a month, I was maxing out my TSP and moved all IRA money into a 6-fund ETF portfolio at Vanguard. I think my expense ratio is less than .20% over my entire TSP/Roth portfolio. It's easy, smart, and in the end, keeping money out of advisor's grubby hands means lots more money in your pockets in the end.
Managing money doesn't need to be cosmic. You are intelligent enough to manage your own money...