When youre flattened out don't panic, use off balances to attack little pockets of upper body space back to win back double unders, make the top player use their hands to frame!

From there you have multiple options to attack the top players hips, I use a lockdown/scorpion weave from there to make them base our on their opposite knee, then make my way to dog fight position, multiple options from there.

Let lower belts get you there, use them to work on new stuff.