How do I hide My strategy???

You don't. You simply try to find the best move given the situation on the board, every move. You have to expect your opponent to notice threats you make, and act to counter them - that's what every good chess player does. The only way to win more often is to improve your ability. For starters, check out these articles:
http://www.chesscafe.com/text/heisman67.pdf
http://www.chesscafe.com/text/heisman49.pdf
http://www.chesscafe.com/text/heisman19.pdf
Well. . . I had some strategies for chess. . . But people can spot them very fast ( Expecially for the experience ones ) How do I hide my strategy????