I agree using a tapered leader helps greatly in practice. Most of the bull gills and big Crappies love brush and structure and getting a fly near cover and under branches pays big benefits. Accuracy practice is very helpful. Try putting your piece of yarn under a lawn chair at 40 feet.
It also helps to see that the line is generating enough power when straightening to turnover a fly. Sometimes, wind resistant flies (and weighted ones) lag behind on the turnaround of the cast and drop, creating tailing loops. Using a tapered leader will help in the turnover and learning good technique.