Mark

Go slow and it will start to become second nature. Back when I though Jimmy Smith did all his bass on the pedals I practiced 1 -5 jumps in all keys and then scales. After awhile I really didn't think about my left foot much and can still play a pretty good pedal bass.
For LH bass I would put on a SLOW swing or shuffle rhythm on your drum machine to keep you steady and do ii - V - I's in all keys using scale tones to move smoothly from one chord to the next. Later you can add 1/2 step slides and jumps from 1 - 5 or octaves. With you RH keep it really simple and just do chord stabs wherever you feel like it. Sort of like comping behind an soloist. Soloing over it will come faster than you think. Good luck