It’s very difficult to get rid of confirmed habits. - There is nothing technically wrong with this sentence but you probably don't need the word "confirmed" better to just say " It's very difficult to get rid of habits." I have a mental affection I am thinking of suicide every day. - "Affection" is not the correct word here, you are maybe thinking of "affliction"? I would say "I have a mental affliction, I think about suicide every day." Today it’s your turn to withdraw children from the school. "withdraw" means remove but wouldn't really be used in this context, you would "collect" or "pick up" children from the school. If you withdraw a child from school then you are taking them out of that school forever. The sentence should be "Today it's your turn to collect the children from the school." You need to add the "the" to show that you mean specific children and you are not just collecting random children. What language is spoken in your country? This one is fine but you may want to make it plural as more then one language may be spoken in that country. "What languages are spoken in your country."