Learning to identify the signs and how to deal with them will allow you to effectively reign-in your training when necessary, recover sufficiently and achieve a more sustainable progression in the long run.
Whether you idolise an elite athlete or are chasing a friend from the gym, doing too much and not resting enough will always catch up with you sooner rather than later. NOBODY is immune to overtraining!
Is someone doing two-a-days, five-to-six times per week? Cool. That doesn’t mean you have to! Chances are, they have the lifestyle that allows for it. Maybe someone is progressing quicker than you? So what! Consider that they might be in the early stages of their training journey where progress comes rapidly and PBs are frequent.
Take the mantra ‘you’ve got to be willing to do what others won’t’ with a pinch of salt! Do what is relevant to you and your goals.