PVT PLT OF SMA ACFT DEVIATED FROM TWR INSTRUCTIONS AND HAD A NMAC WITH ANOTHER ACFT DUE TO A COM LANGUAGE BARRIER.

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AFTER GOING THROUGH THE PHX TCA; I REQUESTED TO GO TO BUCKEYE VOR. HOWEVER; PHX APCH HAS SUGGESTED ME TO GO TO SCOTTSDALE FROM MIDFIELD. I THOUGHT BECAUSE OF CONGESTION OF TCA; PHX APCH HAD TOLD ME TO GO TO SCOTTSDALE. PHX APCH HAD GAVE ME A FREQ CHANGE TO 120.7 FROM 123.7 WHICH I WAS USING. PHX APCH ASKED ME IF I COULD SEE THE SCOTTSDALE ARPT. FOR THE SECOND TIME; I LOOKED TO THE 1 O'CLOCK POS THEN I FOUND THE SCOTTSDALE ARPT. PHX APCH SAID 'CONTACT SCOTTSDALE TWR ON 119.9; GOOD-DAY.' I THOUGHT THAT SCOTTSDALE IS GOING TO VECTOR ME TOWARDS BUCKEYE VOR. HOWEVER I WAS A LITTLE CONFUSED BECAUSE BUCKEYE WAS SW OF MY POS. I HAVE SWITCHED MY FREQ TO 119.9 AND MADE MY CONTACT TO THE SCOTTSDALE TWR. BUT; AT THIS POINT I HAVE ALSO SAID 'LNDG' BY MISTAKE. SCOTTSDALE TWR GAVE ME A CLR FOR STRAIGHT IN APCH. I'VE STRAIGHTENED MYSELF WHILE I'M DSNDING. AT THIS POINT; I WANTED TO EXPRESS 'TOUCH AND GO' OR 'TRANSITION' INSTEAD OF LNDG. BUT TWR WAS REALLY BUSY AND IT WAS ALSO DURING MY DSCNT. SO; I COULD NOT SPEAK OUT. THEN SCOTTSDALE TWR SAID 'MAINTAIN 3000 FT AND ENTER THE DOWNWIND.' MY POS COMPARED TO RWY WAS PRETTY CLOSE AT THIS TIME. I WAS CONFUSED AND TRYING TO FIND THE WAY OF ENTRY TO THE DOWNWIND. WHICH LEAD ME TO R TURN. I SAW ANOTHER ACFT THAT FLYING CLOSE TO ME. ANOTHER ACFT THAT WAS IN THE PATTERN HAS ANNOUNCED TO THE TWR ABOUT ME TRYING TO HELP. SCOTTSDALE TWR GAVE ME A CLR FOR LNDG (SAID 'CLR TO LAND'). I SAW ANOTHER ACFT IN THE CLOSE EDGE OF THE RWY 03 BEFORE THE NUMBER BUT I LANDED FLYING OVER THE TOP OF HIM.