There's a lot to go over in a conversation on this topic, it would benefit you to get with your instructor and have a face to face discussion. That being said there are some basics that you need to consider.
Stuck pedal/anti-torque training maneuvers are a demonstration of balancing the torque reaction of power applied to a "fixed" anti-torque pedal position in order to land the aircraft. A stuck right pedal maneuver is not a demonstration of a total loss of tail rotor thrust. A stuck left pedal is not a demonstration of landing with maximum tail rotor thrust. The left/right reference is in relation to the amount of tail rotor thrust required to hover the aircraft at its present GW.
At a stabilized hover note the pedal position, that is your reference point. Less left pedal than that would be a stuck right, more left displacement would be a stuck left.
You are not trying to land the aircraft with full left, or full right pedal. To do that would require a lot of aircraft to train with and a full time crash crew.
What you are practicing is how to balance the power applied with a fixed anti-torque setting (and also vary airspeed to take advantage of aerodynamic factors) in order to land the aircraft.