Most experiences in our lives that seemed difficult at the time become valuable lesson for the future...

Everything comes and goes, sometimes it stays for some time, sometimes for long time, but finally always leaves us, the basis is, what you've got after it leaves.
  Evetyrhing in life , even stupid little things influence us as personalities, life sculpts personalities from us, and we cant judge anyone, because we never know their way and their life.
  The things that hurt us have bigger influence and effect on us, than things which make us happy.
   when child falls down and gets hurt next time he/she is more cautious, because they are afraid of making same mistake and getting hurt.When we become adults we do the same thing, the things that hurt us make us more cautious.
   And as everything comes and goes nothing lasts forever, and if it is difficult time it wont last forever, but  offensively is that we learn better on our own mistakes and even if you know someone's experience, and you know you're going to make same mistake, you do it anyway, and finally it changes us, someone to better side, someone to worse side and someone becomes just smarter and wiser...

Some people like to do only what they do well. other people prefer to try new things and take risks!

    I think it depends on person's character .Some people prefer to do only what they already do well and they don't want to upgrade their skills in something new, I think these people are afraid of obstacles on their way and they are afraid that they may do something wrong, make mistakes and look stupid...people like that should realise that if you wont work for something it wont work out and that everyone makes mistakes and that there are hundreds of people out there who think the same and it is not fearfully to look stupid... If you are on your way and you want to do something just do it no matter how difficult it seems to be, just give it a try!

      Some people aren't interested in new things I think it all comes from fears they are afraid of something so they prefer not to do it at all than to try something new...

      I think everyone should work on themselves and make best of what they can, they should do it for themselves and not mind about society's opinion of it. Biggest problem is that people care about others opinion too much so they can't be just stupidly happy... People have to believe in themselves fear less and do things which make them happy and things which they really enjoy doing!