Welcome to the forum. Meditation
is one of the natural methods to control negative thoughts and gain concentration. The other best thing that you can do is practice yoga
under an expert to improve your power to concentrate and draw in positive energy for yourself.
You should consult a counselor and get cognitive behavior therapy. This will help you to get into any kind of depression
and feeling of being lonely or left alone. If you still feel sick, visit a doctor you may need anti-depressants.
You can take natural mood elevators like walnuts, soyabeans, tofu, tulsi tea, broccoli if you are a non-vegetarian you can take fishes ( salmon, shrimps, etc ) Keep well hydrated.
To keep away negative thoughts take some amount of sunlight everyday, visit a parlour, take a beauty massage
, exercise, visit friends, watch movies, sing songs. Keep yourself stress
free and merry.