Concentration is not easy, in particular when you work remotely with long deadline in front. Initially you believe so badly that you can finish the work only three hours but in reality you can’t. You need more time because your focus is dictracted by many things. For example, you get an idea then you continue to write. Only several minutes you write, but suddenly random thinking rise such as checking social media. You scroll timeline or new feeds rising that spend double time or more. Or you suddenly listen to the musics or watching video on Youtube then hard to come back to work. I recognise that working remote like this is not easy because one and only your enemy is your self. You will win if you can control your self.