This is basically a way of deflecting the question and letting them know things are hard but you're dealing with it at the same time.

Change yourself

Yesterday I had was thinking about my problem - why my  sudden loss of motivation reduce in time, why I do not have an unstoppable passion to do what I like? Maybe I don't like enough what I do enough... but if I lose interest in something what that I thought was my passion, I come back to it after half a year or 2 years. loop, repeat again.

The real question is realy can people can change? I don't talk about the fact of when one day someone does something unusual for him

(i would say - out of character), I talk about real the fact of when people change in at their core. Not even if when a man was an alcoholic and became not quit drinking. at all. I want to know if there really exists people who can change their life style. Who was lazy but became an active worker, who was jealous and overcame it screw it, who was scared of scarry everything and became courageous.

If you know these people, or read about them before, give me link to that story. Also, I want that you to correct me. Thank you!

Find language partners willing to use apps such as Skype to speak or take lessons from the teachers on this website. ^^

regret

I don't know when it have started going to wrong side.
But I know from when I decide to fix them.

"I don't know where I went wrong, but i know I decided to fix it." - Is what I would say.

Regret is hard. It molds your character and helps you be a better person though. 

"A diamond is just a piece of charcoal that handled stress exceptionally well."

Keep at it!

”all of this" - is referring the what he has gone through in previous context of what you have read up to that point. you are correct that "it" is referring to the flashlight and that we don't know if he actually grabbed it or not.

Economic Debate(8)

The following statements summarize a debate between Dr. Chang(*) and "free market economists." Would you correct it? Thank you in advance.

Dr. Chang contends states that it is necessary to select a good foreign investment for the recipient country's sake point of view. The His opponents stress that to select selecting the investment is the same as to suppressing it. I think it is more important to sorting out the bad and risky investments than to just selecting a good and profitable one to for the economy.

I watched a meaningful TED lecture given by James B. Glattfelder(**) which, I think, has some implications relating to this topic.

Mr. Glattfelder wanted to find out "who rules the world" and focused on trans-national corporations(TNCs). Applying his network analysis technique, he found:
(1) 36 percent of TNCs make up 95 percent of the total revenue of all TNCs.
(2) 737 top shareholders (about 0.1% of the shareholders) have the potential to control 80 percent of the overall value while 146 top players have the potential to control 40% of the overall value.
In summary, a very small number of people rule the world. So Therefore, discovering how to cope with significant systematic risks of the global economy is our task.

* The author of a book titled, "23 Things They Don't Tell You About Capitalism."
** https://www.youtube.com/watch?v=NgbqXsA62Qs

Hope this helps! I was a little confused at first trying to figure out exactly what you were trying to say. I think this would be the most natural way of writing your essay though. I added some spelling corrections and a few words of my own opinion that I felt would go better with the context. You did well! Keep working hard! :)