Hmm, good question I was thinking about teacher job but this job is not for me. Why? I think being a teacher is responsible, if you are teaching youth and then they are going to take for example polish matura exam I would feel nervous about their results.
Tired or frustrated? It depends on place where you will take the job, I mean kindergarten, primary school and so on. I would feel more tired than frustrated because I like working with people with common interests.
I would play computer games If I were tired after work. Like Counter-Strike: Global Offensive and it would be funny to play with my students 😀
