My instructor has given me the following exercise, which seems to be a miracle for me.
Divide the work into sections.. Play each measure stopping on the first note of each beat, then play the next set of notes, , to the first beat again as fast as you can. Pause as long as necessary to absorb the notes and fingering between each series
Repeat, stopping on note two, then note three etc. Each time wait to get perspective of where you are headed, and play only the small series of notes fast.
Seems to be coordinating my brain and fingers for sixteenth notes.