1. 95% raw fruits + raw vegetables is a major go. 5% cook food which is the meat.
2. Stay away from wheat(gluten), diary, artificial sugars, most of seeds, starch, processed foods made by humans or products made by humans like cigarettes and vaccines.
3. Get sunshine(vitamin D) everyday at least 15 minutes.
4. Don't let stress affect you.
5. Exercise 20-30 minutes everyday.

Optional: Find your passions.

That's the best advices I can give to you, if there are others I would like to hear as well.