This is for some one of the most challenging rounds. Often workouts focus on either strength or mobility. As you probably have learnt by now, BoxingYoga aim to do both at the same time. You may excel in the strength postures but struggle in the stretches or vice versa. Be patient with your body and know that it will come.
If push ups are difficult for you, try to still keep your knees off the floor, engage the core and simply bend your elbows a little bit less - but keep pushing. Each time you will have the ability to go further.
Likewise, if your backbend and lunge stretch is a bit wobbly and you're feeling tight and uncomfortable - start by working on with stance and move slowly with your breath.