I got stuck at the same place. I forget which King is was (Albert I think) but there was one with these crazy 1 and a half step bends that were killing me and my fingers. I decided to move on because, as cool as the riffs were, I could live without mastering them. I like the blues, but my goal isn't to be in a dedicated blues band or try to mimic that style.
Sometimes you have to take a step back and evaluate just how it fits in your goals. Later on, there's nothing stopping you from going back. Months from now, you could go back and fine it a lot easier.