I think you are well on your way, with Sagreras! I love his Books 1, 2 and 3. These are always very interesting pieces.
I don't know if it is 'cheating' or not as a means of instruction (why should it be cheating?), but you can easily see these works on YouTube. Just enter Sagreras Book 1 or you can check out, if you wish, the following link that gives the playing of almost the entire book by a guitarist I enjoy a lot: