considering the fact that trading is highly profitable and responds majorly to knowledge and skills, this means its needs full attention and concentration consistently. i have noticed alot of new and upcoming trader gets carried away easily with little profits or loss. this makes many to quit or feel complascent. becoming a good trader is like going to a school, you do all necessary things consistently without any distraction untill you succeed. this is one of the things that i feel is needed to incorporate into trading learning process and lifestyle.
I like your example of comparing becoming a trader with a school life, exactly that's how we can become a trader no matter how much knowledge we have about trading because experience makes us more perfect and the real life lessons will teach you things a lot better.
Full concentration doesn't mean 24/7, you can work in the time you want but this is a Market that never sleeps so make sure you are prepared to minimize the losses which can save your past and future profits.