what should we do when we are unable to get sleep

about me in this situation
here i want to share my own experiences , i remember the time itz not far long just a few months before when i was unable to get sleep at night whenver i go to bed i waz unable to get a sleep .. i tried harder but itz not in your control to fall in sleep itz natural process ... after when two or three days passed with the same situation i started findin a way cuz because this thing affect all my daily routine and i waz very worried so then i applied these follwoings in my life and it seems very useful

things to do  

1. first thing ask yourself before to go to bed ... do i need some sleep ?
   am i feeling restless?
   can i not continue my work without getting a sleep ?
2. if u find the answer of above question "NO" then it means it is not a suitable time for getting to sleep you must do work but the question arises what work to do if we got nothing to do ..
   you may read many these things that go somewhere out take a walk , do driving or watch a movie ..
   
   i used all these items and find them useless and i observed that actually to get a good sleep we need not to just focus on that time of our sleep but our daily routine is effecting our sleep , so there must be some wrong with your routine so below em writing thing to do in your routine 
3. are you doing any sport , any physical exercise even a little one if no then itz really bad ... you must do.. get admit in any club around your society and let your muscles stretch when they will get burn they automatically needed some rest which is good to get a calm sleep 
4. i also waz a doing martial arts but even then i was unable to get sleep then whatz  the problem then i realized whatever game you are doing u have to do it harder than before for e:g if  you are a runner then your following day speed must be greater than before or whatever game it is your today's struggle must be greater then before .. because your body becomes habitual of the previous day routine so become more restles it needs some burn... i guess you got my point 
5. as i defined a thing in point 4 , all things you do in your life must be better or improved than before this will really much helpful for both you and your sleep 
6. only physical exercise is not enough , you also need to utilize you mind as much as you can and obviously more than previous day ... if you are professional and your office work is some creative then itz really good otherwise do find some stuff to do like play chess , mission games or things that can make your mind feel restless ...
7. we actually sleep when we need rest ... there are many other ways that i will define later ...