You just spoke to my first mistake."Don't" be lazy?
It is hard and there is no cutting corners. "Don't" think you'll be able to play a decent walking bass without working hard, learning and practicing. "Don't" think there is anything like a silver bullet.
Watching others do it, it looks easy.
When I try it...

. if you can produce a great feel, from the get-go = the note choices are easier...immediately, indubitably, guaranteed!