You have to assess your stress and learn how to gel  with it. You may learn relaxation techniques like JPMR or guided imagery from a mental health professional.

for overall health 1.sleep 8 hrs at night. 2.avoid too much social media. 3.avoid too much use of mobile pc laptop. 4.avoid mobile pc 1hr before sleep. 5.before sleep may hear good music,or read a good book or  can watch a good movie. 6.workout daily or regular morning walk or join gym. 7.Share ur thoughts with ur parents or good friends. 8.Concentrate on ur work,study,passion, hobby. 9.Maintain proper diet. 10.Take proper protein supplement and some time multivitamines. Follw the steps.If not fruitful then consult psychologist for help.