For the board press, practice on flat ground while not moving first. The main weight shift is in your hips. Keep your body in line with the board. As you lean back the board should lift without you needing to actively pull up with your foot. Also keep an eye on your knee, it will tend to want to point in, try and keep it pointed where you want the weight to be.
Same thing for the ollie, lock it down while not moving first.