How to be cool and calm

As I stated earlier to be cool and calm is directly associated with our state of mind.
      1)  If you are in any trouble find the
           worst possibility that could happen,
           also don't forget to include your luck
           for getting best possibility from that                situation. Then just think that if worst
           case happens then no matter how it
           is I'm going to overcome it with all my
           strength and courage. And if your
           goes with you then there is maximum
           chance that you will be having your
           good possibility of that situation.

      2) If you are a kind of person who
           can't fix their mind on single thing
           then you should try to focus on your
           breath, whenever you realize that
           you are distracting from your work.

     3) Set a roll model like whom you want
         to be and keep picturing him/her
         in your mind frequently.