I am beginning to think I will conquer this piece eventually...not that I have made much progress forward but I feel quite confident in the parts that I have learned.
Obviously it's all about fingering...I have revised and experimented more than with any other piece before... still have certain parts where I am not sure I'm quite there yet.
I also think it helped to kind of mentally let it go for a while and concentrate more on the other pieces which seem so much easier. Not stressing about the invention seems to have helped with my memory issues a bit. Obviously this is better done without any time pressure. Hopefully I'll be finished before the summer break
