What to do after recovery from a heart attack?

After recovering from a major heart attack, many would be confused and scared.
Of course, a heart attack is a major life changing event for many, that require major changes in lifestyle.
But many people live a long and fruitful life even after a heart attack.
Every person will receive almost all the needed information from the treating physician regarding further course of action depending on the severity of the disease in the individual.
One of the top priorities is to prevent a recurrent heart attack.