Hosed by years investing in actively managed funds with Ramsey ELP

I had invested for over seven years through one of Dave's ELPs . At last, after Dave's infamous eight percent withdrawal rant last year, I did research and realized how wrong he is on his investing advice. I feel cheated and used by his system and then moved everything to low cost mutual funds in Vanguard. I estimate that I have lost at least 25 to 30 grand over the years in fees and expenses which I could have saved had I used index funds instead. Live and learn, I guess, but sometimes I feel resentful at Dave for his ELP hustling (which lines his pockets) and myself for being so naive.