[Closed] first tornament $1 buy in

I ended up winning the sit and go tornament, the key hand was the first one I played, now this was about 12 hands in, I had an Ace of dimounds and a seven of Dimounds, I'm in the cut off, the blinds are 30/60 its deep stack and my stack was at 1820, 3 players already eliminated, so seven players left, someone min raises from mid position directly to my right there was one caller before, he raises to 120, i call, bb calls and caller calls, everyone else folds. The pot currently is 510, The flop comes kD 7C 3D, I have midle Pair with a flush draw, first to act is bb he checks, middle position bets 120, later middle calls, now i wasn't sure if i should call or raise here, I thought well i get to see the turn cheaply so i call and bb Folds. The turn comes 9D, now i have the nuts and i thinki was either playing against good players or really bad cuz the pot is now 870 first player checks second player with a stack of about 1700 bets 870 i call first player calls the turn is kS now i now theres full houses out there but I'm too comited her first pler bets all in second player raises all in i call first plaer has there of a kind kings with a week kicker second player has king queen offsuit again a three of a kind, so I win a pot of about 5700 and It's easier from there to win.