faa2010, have you tried practicing a piece with the focus on flow as opposed to note accuracy? You may wish to practice this technique with music that does not pose too much of a technical challenge. This invention is RCM grade 7, so you may wish to do this exercise with something like an RCM grade 3 piece.
The objective is that flow of music takes priority over all other aspects. You can may as many omissions, mistakes and flubs as you need, but the focus must be to maintain the flow of music. Do not stop or pause to contemplate a mistake, you must keep going. Do not pause to work out a difficult passage, you must keep the flow moving.
You can also practice this priority of flow exercise while isolating small sections of music. Say you want to practice bars 16-24. In order to preserve flow you would not stop between the end of 24 and the beginning of 16. You continuously loop the passage, even if you get weird harmonies or cut of phrases - again the focus is flow. Moving on from that, you can practice jumping from random parts of the piece without interrupting flow. You could do Bars: 1-8, 17-19, 14-16, 32-48, 1-8, 32-48, etc. without stopping.
You may want to consider playing duets or ensemble music with other musicians. When playing with others it becomes very obvious that you all must keep a uniform pace and progression through the music. It is also much more humane and fun than practicing with metronome.