What are my chances of having a 2nd heart attack. Will I survive after 2years since my first heart attack?

Size. There are many things that determine survival after a heart attack. One of the best predictors of survival is the size of the first heart attack. The amount of damage to the heart is reflected in the ejection fraction. The lower the ejection fraction, the worse the survival after the first heart attack. Other predictors include diabetes, cigarettes, hypertension, age, and coronary anatomy.
Modest. Follow your instructions after first and reduce chance of another substantially! to return to near normal life expectancy for your age!