Before learning it, do have your riding basics down. Meaning you are very comfortable riding it around and doing kickturns and not be pushing mongo. Best to learn it whilst stationary with your wheels on a crack so that you don't move and slip out so much. I don't recommend doing it on grass or carpet cos when you pop the tail, it's gonna be absorbed by the floor and when you start doing it on pavement, your muscles will memorize a different way of doing it. So nope, no easy way out i guess.
So the proper foot placement for the ollie is with the ball of your back foot horizontal on the tail of your skateboard. And your front foot centered on your board right behind the front trucks. You may find that moving your feet around in different positions are more comfortable. This is fine, everybody can learn how to skateboard their own way.
Today, many riders use the “ollie-pop” on more than just the flat-level surfaces in between other tricks, it’s used heavily in the half-pipe and bowl ramps to allow the rider to go even higher in the air. Performing the “ollie-pop” while you’re at or near the top of the lip is a great way to get an extra couple feet, which might be all you need to get that extra turn in and nail the 720 (or 900, if you’re Tony Hawk).