Hi there. I think the best option is always to just read through the piece, even in sections or slowly, and pay close attention to the sections that seem the most difficult/awkward/etc. Especially if you are working on something pretty challenging like that Scriabin etude, I think you should be able to read through the piece and get a good "gut feeling" as to whether or not you can handle it. If you still aren't sure, but you're crazy about the piece, maybe just pick it up anyway - if you're doing this for fun, there's absolutely nothing to be lost; if it ends up being too frustrating, just shelve it for later and work on something different in the meantime!