Good grief, I looked at your profile and you appear young and thin. What the heck? A heart attack?
Yep. A year ago this May. It was a near thing but being 38 at the time put some of the odds in my favor. Look, I still eat an some fatty foods and such, but what I really pay attention to is exercising, minimizing heavy fats (fats that coagulate at room temperature) and keeping my stress level low. Had I done those things back then I may not have had the attack at all.
The most important thing I learned though was to make sure that you are enjoying yourself. Had I died that day I would have done it pissed off, stress out, and unhappy. Screw that. At least do what you enjoy.