Thats why profesional trader which living from trading. They dont wacth chart whole day. They only take 2-3 hours to analyze market and making decision at what price they want to enter market. And then they set the stop lost after calculating the risk factor. They wont use very big matgin. They have good risk management base on their money.
That's right and experienced traders have a setup such that they spend most of their time thinking rather than doing trades themselves. The place where I live, we have offices where traders operate and they have employees who will work for them, they just come once or twice a day and monitor the situation and loss/profit.
Maintaining health is important because even our mental health is related to how physically fit we are. I was reading about Elon and he spends hours running and lifting weights which shows that despite him being the richest, he still is conscious about his health.