As a match official you must quickly become self-sufficient for your learning. You are responsible for accumulating, absorbing and analysing feedback on an ongoing and long-term basis, but, it is the infrastructure that surrounds you; your refereeing colleagues, the referee society, the Union or a Referee Coach - that has the capacity to support your development.
After each game, it is good practice for you to seek feedback by trying to speak with the coaches, captains and players of both sides and eventually a Referee Coach who may be appointed by your local Union.
Where coaches or players seek you out for explanations on your decisions, try to keep your responses open and brief. Gaining feedback is important, but the drawback of these informal clubhouse discussions is they are often lacking in structure and context. Even if you disagree with the feedback, thank the person for the feedback and say you will think about it. Notwithstanding this, don’t be afraid of criticism. It is part of the job.