I am blo... frustrated now. I have been working on the Chopin A minor (post.) waltz for over a week. It’s a simple piece and I can sight read through it slowly. But I just cannot learn the left hand chords so that I could play it up to tempo. It seems to be a general problem, it took me over a month to learn the few left hand chords of K32. If I wasn't so stubborn, I would have given up.
With this waltz I have tried different methods, just working on the first 4 measures, played the chords arpeggiated, played only the lower 2 notes first and so on. Every time I think I get them but when I try to play faster I get a black out on one of these chords, if not the second, then the third or the fourth measure. The only way I can play the sequence is if I have time to think “this was the one with e and d” and so on.
I don’t get this problem with chords when I can change between them without lifting my hand from the keyboard. But when there are leaps I need to do two things at once, find the place for the hand on the keyboard and find the correct hand shape for the chord and something happens, I lose my sense of the keyboard and get a kind of panic reaction in my brain, maybe my short term memory overflows…
Any ideas? Am I the only one with this problem? I don’t even like waltzes, but I do want to be able to play at least a few.
Chord theory would probably help in the long run, but I just find it so terribly boring

I did some as a kid but all is forgotten and I don't think I want to start again.