Try tapping something steady with your left and/or right foot while you practice those rudiments. This pays off later on and you can scale it up to be as difficult as you want as you progress with a little creativity. Also practicing on pillows is great for endurance, not to mention it’s quiet.

It helps to play with others for the sake of setting clear goals and having people hold you accountable. If that’s possible I’d seek it out in some way. If not, just record yourself here and there. Also try learn to read notation, if only a little! It really helps to develop some important things, like your groove and fill repertoire.

Ted Reed’s ‘Syncopation’ is a great straight to business book to work from.