If you can play those Chopin pieces well, then the 1st movement of the Appassionata is probably at just the right level for you. However, the third movement might be too advanced; Les Adieux, as a whole, would probably be more manageable. Waldstein or any of the Op. 101+ would almost definitely be too advanced. Have you considered the Tempest Sonata? It is considerably easier, and in the same, general vein as the Appassionata. You might have more fun with that piece, rather than struggling with Op. 57.