I agree wholeheartedly with with amp. No need to rush into excessive difficulties without the tools. That's not to say you should avoid tackling them, but you might want a solid foundation first, lest you get turned off early to his works.
The most difficult thing about successfully performing Chopin (technique aside) is his style. Getting an idea of Chopin's idiom, to appreciate the characteristic phrasing, rhythms, flair, etc., should probably be your first aim, if you've never played his works. Maybe reading through a waltz, a nocturne, a couple of short mazurkas, and then perhaps tackling the "Military" polonaise would be a good introduction.
tph