How can a person change their life around, do something new, just wake up the next morning and start a new routine?

baby steps.. but doing something consistently every day to make it a habit helps. Do one thing at a time, ie once a month incorporate one new habit. might seem like it will take too long and it might seem that it will be easier to just change everything at once right now but believe me from experience that takes way longer.. because you keep waiting for that perfect moment to start.. like next monday. I'll start on monday.. and then when you fail one thing you might give it all up and revert back to old habits and feel guilty and then put off trying again for a while. Will power is a myth. Human nature and survival will fight so hard against change because your body knows youre alive right now so whatever you are doing is working and doesnt like the risk of change. We change so naturally and easily when something isnt working for us at all. You have to make things you dont like not work for you.. and instead of cutting things out of your life add things that make you so full and busy with things you love and want that the other crap has no room and just leaves.. and incorporate things into your already existing habits. Like if you want to get fit.. do usual stuff like housework harder and faster.. or walk instead of driving to work.
Want power is stronger too.. you have to really want something and visualize how awesome it will be to have it.
Avoiding guilt and being proud of yourself for little steps

Traumatize them.

Depends what you mean.. good or bad change...

Bad could be due to encounter, friends,

Good could be cause of strong will and desire to chance and improve, to be better

You start with the first step of doing it differently when you wake up. Then you go a different path.

You just do it.
You make a decision and find a way.

Baby steps... one small change at a time

Absolutely