Honestly, i never make that kind of extreme movements on rudder or nosewheel. If (on the ground) you have to make these movements to make a turn, you’re going too fast towards and through the turn.
On final approach, with heavy crosswinds (after disconnect ap, click twice on ap-off button) you’ll need to ‘surf’ towards the wind, using both ailerons and rudder. Training provides the skill. And obviously your plane has to be configured properly, otherwise you’ll get an incorrect Vapp speed! Maybe it’s better to train first with light wind, and gradually increase wind speed and ~angle.
After landing the plane is supposed to roll out with hardly any need to correct. When you start manual braking and disconnect the spoilers the steering is yours again. Again, for all this the plane has to be configured properly. Watching YT-videos and tutorials helps a lot! E.g.: 320 Sim Pilot, EasyJet Sim Pilot, Jonathan Beckett, V1-simulations and more.
Regarding your settings: Less deadzone and more curve around these deadzones helps a lot. Again, look on YT or Google for sensitivity settings. I took mine from EasyJetsimpilot.
Good luck! And, more importantly, have fun! After many years of simming, i too still have botched landings. 
and learned not to be hard on myself.