Nothing could be more complicated in the world than a human mind but believe it is under your control. You can control your mind and thoughts very well with effort before your mind overwhelmed you.
No one would like you if you are high tempered person al time stay in angry mood even you yourself will hurt you. In a negative situation you must have guts to think positive and turn the situation under your control.
If you start thinking over a situation too much the more negative thoughts will come into your mind but if stop over generalizing the situation that will be not able to hurt you more.
The more you think about a worse situation the more that will overcome you. With thinking about a few things you can control your mind and negative thoughts:
Must give time for mind relaxation:
All time work can make you dull and frustrated so must give time to yourself. If you keep yourself obsessed with work then you will always find in anger and your mind will become tired soon From your work and studies must give time to you and for this you can go to a greenery place or to a picnic with family. From the seven days of week keep Sunday for outgoing with family. This break will give refreshment to your mind.
Try to think positive even in negative situation:
When there come any negative situation as if you have to face a loss then start thinking that might this lose is for your grooming and this loss is to give you an experience. Burdens of life on head will tell you how you can walk gracefully. Have a smile on face even at your loss and be happy at gaining the experience at the loss of something.
Give worth to yourself:
External manifestation can change the internal feelings so with your smiling face and pretending to be like everything is all right you can make your heart feel satisfy. Nothing could be more important in the world than your happiness and yourself. So your own happiness comes first than the other things. Many students do suicide when they could not get high marks which they have expected. Keep one thing in mind that you are important nothing else.
Give inner happiness to yourself:
Helping the needy will give you utmost pleasure and inner happiness. If you think your life in dark then bring light to others lives this will give you happiness. Some people in their sorrows love to spend time with children as they are innocent and become happy even on small things. So by giving happiness to others you can give pleasure to your mind.