First you should be careful with what you eat for example try to eat only vegetables and not junk food , try to practice many sport , eat healthy , sleep more don’t stress over little thing so try meditating it could keep you focused on yourself and help you stay healthy. If you want you can run or swim it helps your muscles feel better and you can practice many sport. Drink a lot of water avoid sodas. If you are in good health your body is going to be protected and you won’t have health issues , pimples , tiredness, stress , anxiety , overweight and many more so good luck.