Skunked again by Lake Hefner

Got on the lake today at about 2pm and stayed until I saw lightning to the south. We are supposed to have some nasty storms for the next few days. I didn't catch a thing, I also went out on the lake yesterday from about 3pm until dark and didn't catch anything. Lake Hefner has turned out to be a huge challenge for me. I've heard so many good things about the lake regarding Walleye, Crappie, and Smallmouth Bass but I have yet to have a good day on Lake Hefner.