Struggling to make progress in fantasie impromptu

[cansteam]

Hi guys,
I've been learning chopin's fantasie impromptu since mid January. I had learned the piece by mid february but not close to performance quality. I have been steadily working and improving over the past few months, but recently I've hit a sort of wall. I've been struggling with the phrasing and the dynamics of the A section and outro for a long while now, and I've tried slowing down then speeding back up and I cant quite seem to make any breakthroughs with making the song better.
Does anyone have any practice tips or advice?

[anacrusis]

What exactly with the phrasing and dynamics are you struggling with? What is bad about it now and how would you like it to sound instead?

[dw4rn]

Could you make a simple recording or video? Then it might be easier to come up up with some tips.