For those who trade professionally for a living, I have a question. - Do you set a particular target return for a day/week/month/year period? - If you hit that target, do you stop then, or keep going? Say for example that my goal was to increase my profit in the week by 2%. If I hit that by Tuesday morning, what are your thoughts, speaking from your own successful professional experience, about stopping there and not trading the rest of the week? Same for daily/monthly/yearly?