Dude, that's a question that's too big to answer. Take a scale, and play it up and down with a metronome until you can do it without any mistake. I don't know how much it will take you. Make 30 minutes, maybe an hour.

When you can do it, work on a arpeggio, or a song, whatever, but keep playing SLOW and IN TIME. Then move it up to the normal tempo.

Work on musical things, but don't say "ok, I have my 7 minutes or diminished scale, I stop there..." that's not the way it works...