What to do if your manager just scold you even for best work you do and give promotion to someone else?

At the end of the day you know how much work you put in . You might not have to like what you do but be proud of how you do it. Your boss might never acknowledge what you do but someone does. Take pride in whatever you do regardless of recognition. Because that job could be a stepping stone and your hard work can pay off in whatever you do next

Then put myself into a situation where I am happier, strive for a better job and work hard because nobody else will for you but you.

I would wait till my manager understands me and look on me to improve my ways to get the appreciation of my manager, though I would be hurt. I would wait for the opportunity to prove myself that I'm best indeed

Talk to your manager and let the manager know how you are feeling about the situation. Never keep quite!

Don't jump the gun and assume the worst of your manager. Perhaps, there's another reason for that someone to have been given the promotion. Maybe, his best is simply better than yours (like strengths, we each have our weaknesses!) Be upfront and talk it through with your manager (if he or she is talkable in that sense.) Else, bring it up to the people at HR. If you feel constantly nitpicked by the manager and the HR depart is pretty much keeping silent, it's time to lookout for another job - no one should be constantly made to feel worse at work or at home!

Success comes only after failure being patient and optimistic is the best way out. Trust yourself because hard work is the key to success

That could be a tough situation. Perhaps you can speak to your manager about how you feel and why you feel you deserve a promotion.

Ask your manager to redefine the expectations they have of you; use this as a learning opportunity. Your manager will view your actions as pro-active and respect you for trying to improve your performance.

Well you have some mind frame about self worth and deserving what needs to be revisited. Because what your manager is doing is just a mirror of your own thinking and beliefs...

The best thing is to wait until you are calm enough to approach and sincerely express how you feel.