I think the best option would be to spend time with friends, talk to friends and family members. Some times home sick is another factor. The best option would be to find the reason behind it. It can be job, finance, love and much more. Do yoga. Go to youtube and look for ramdev or anyother person's yoga teaching. Just sit on yoga position and close your eyes so badly and when you will see real dark at the same time you will feel fright. think of your very good moments back home. For me I had so many great incidents like visit to chitwan national park, Darjeeling, Sikkim, Delhi, hariyana, Assam, Mizoram, mukti nath, annapurna reagin, pokhara, jomsom, ghore pani, tato pani along other part of our country. Moments with your friends and family. I think of those areas and the moment I spent there and I really feel relax and excited.

Just be on this position for about 15,20 minutes and see how easy and realx you feel.

If its going beyoung your control please consult the doctor.

There are different way of controlling your mind and this is what I do and try to be happy. my $0.2.