Let's reach back to the very first line in the original post.

Originally Posted By: Joe V
I've never practiced enough to have my accompaniment to my favorite cover songs come out fluently.


If I was a lawyer in a courtroom, I would blurt out "Asked and answered."

The answer to this whole thread, despite the detours it has taken?

Practice "enough".

Once again, THERE ARE NO SHORTCUTS OR EXPRESS LANES TO PROFICIENCY.

Post after post pretty much asking people to practice FOR you doesn't help you get better.

Welders get better at welding by welding, not asking other people how they weld. Masons get better at laying brick by laying brick, not asking other people who they lay brick.

Practice. Practice. Practice.