You’ve hit a plateau in your training when the body refuses to respond like it used to, making it very difficult to build muscle or lose more fat. Plateaus are a part of the process; you will encounter them at some point. It’s inevitable. The thing you need to do know is how to respond to them when they come.
Most of us have been to the gym at some point in our lives and yet most of us fail to inculcate in ourselves the few simple little etiquettes that are an absolute MUST in the gym.