Eat a plant based diet ( if you don't want to be told what to eat, ignore this comment. But this is what most of the healthy and long lived peoples on the planet do.) You can add the word mostly if you absolutely have to, but be sure and do your homework regarding your choice. Read T. Colin Campbell's The China Study and visit drmcdougall.com for a start.
Find some kind of 'exercise like' activity and do it
Develop a strong sense of spirituality
Create a strong social network for yourself and your family
Have fun and don't worry
Avoid the fat laden, processed American Diet i.e. just about every food item you see advertised on T.V. Or that comes in a box or a bag.
Be kind ( Ok, I made that one up. But I think it's really important!)
Wishing you a long and happy life...