The PGCE is harder than having a full-time teaching job IMO. You are working with a few different teachers and you are expected to fit in with their individual teaching styles. They expect you to plan your lessons on paper, which in reality very few teachers do. One of the teachers who I was with spent three or four hours every sunday marking and checking notebooks. Because I was teaching her class this meant I had to do this too. I never do this now. Its an inefficient use of time. My PGCE was much harder than my first year of teaching because you are constantly being watched and observed. Now I can just plan most of my lessons in my head 10 minutes before they start. I couldn't do this during my PGCE. My supervisors wanted to know what I would do in advance. The PGCE was the best decision I ever made though. I never have to live in that shit country again, and I can teach in an international school anywhere in the world. I would advise you to do this too.