As Montezuma already mentioned, just turn your stall limiter on then you have your Relaxed Realism. If you want to become better by pushing your plane to the edge of the envelope, then you must learn to fly your plane with the stall limiter off.
I actually fly with combat trims on, which in effect is a form of relaxed realism. I probably can turn my plane much faster if I learn to use the trim in combination with my joystick, but I would probably have to learn to maintain E. I am happy with combat trims for the moment. It brings enough enjoyment for me.