Have one partner walk toward you with a fist as the other is holding you and you move the one holding you to have them engage each other and repeat.
Have one partner hold your head and another one of your limbs and move them so they oppose each others intentions.
Remember you are not in a contest in a Systema lesson nor in life. You need to work on not loosing and you will gain control by paying attention to your breath and to your pulse and to your blood pressure.
And relax the face, it helps.