Catching Whitewater?

I am new to this, woefully out of shape (working on it) and get exhausted making it out to the lineup. Part of this is bonehead moves like forgetting to buckle my leash today (woops!), and totally misjudging where to paddle out at and winding up right in front of where the waves break.
I keep reading here at first not to try to catch the waves as they break, but to catch whitewater. But... how? Just like normal? The whitewater doesn't last very long. Didn't today, anyway.
I've been thinking about going out every day for the next couple weeks and just paddling up and down the beach in between the sandbar and beach break - that way I stay out of people's way, and get my shoulders in shape.
Today was my first day out on the 11' board I just got, and the accomplishment of the day was that I didn't drown
I worked on my paddling, tried to sit on the board, etc.
I keep reading here at first not to try to catch the waves as they break, but to catch whitewater. But... how? Just like normal? The whitewater doesn't last very long. Didn't today, anyway.
I've been thinking about going out every day for the next couple weeks and just paddling up and down the beach in between the sandbar and beach break - that way I stay out of people's way, and get my shoulders in shape.
Today was my first day out on the 11' board I just got, and the accomplishment of the day was that I didn't drown
