Watching good musicians playing is a much better way of learning or improving techniques rather than just listening to the music. Even better is being able to work with other musicians who also plays the blues.

My biggest musical regret is that I taught myself to play Celtic harp and had very few music lessons in my life, and I have known very few other harp players. Blues piano players may also be hard to find in a lot of places so watching them on video or TV may be the next best option.