Well, for a start:

"i play very tight ,only play winner hands AA,AK sorta hands"

Good good, very sensible. Go on...

"the lowest i would go is J9"

Hang on a second! I don't think this is the kind of hand a beginner should be playing, except when checking the BB. MAYBE J9s from the button with limpers before you, but otherwise, it's a killer. Or did I misunderstand?

The later you get, the more high cards matter. Aces and kings go up in value, connectors and other drawing hands go way down. Don't be afraid to play a high pair hard; don't be afraid to fold it if someone comes back over the top. Never give anyone odds to draw.

HU, you want to be raising most hands from the SB - any pair, any ace, any king, any two paint cards. You want to keep calling to an absolute minimum except to slowplay (not advised) or to confuse your oppo.