In a line of Pushikin's poem, there is a saying "Even if life decieves you, be not sad nor angry..." It seems that he want to say positive thinking is important thing in life. I think our happiness depend on our own view of life. Do you have any special proverb or maxim you have kept in your mind? My fourth question is "What kind of view of life do you have?"
My answer is
"Seize the day." or "Do my best as I can do." I got this from the movie "Dead Poet's Socitey" and I totally agree with it. I try to keep that in my mind. I like to enjoy every moment when I can do something. If a chance occurs to me, I'd like to accept that willingly and do my best.