A DISTRACTED C177 PILOT LANDED WRONG DIRECTION ON THE ACTIVE RWY BUT AVOIDED THE OTHER LANDING ACFT BECAUSE OF THE 100 FT WIDE RWY.

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I CONTACTED THE TWR ON APCH (119.3). THE TWR SAID CONTACT 5 MI E AT 1200 FT (TFC PATTERN). I DID ALL OF THE RIGHT PROCS; BUT FOR SOME REASON I HAD A MINDSET FOR RWY 26; WHICH IS NORMALLY THE DUTY RWY. ON THIS DAY RWY 8 WAS ACTIVE. AT THE SAME TIME THE TWR CTLR HAD 1 PLANE DOING TOUCH-AND-GOES (CESSNA SKYHAWK) AND A CHK FLT (MIL); AND ME ON THE SCOPE. THE CTLR PUT ALL OF HIS ATTN ON THE MIL FLT AFTER TELLING ME I WAS #2 BEHIND THE CESSNA DOING TOUCH-AND-GOES. I LANDED AND AT THE SAME TIME THE CESSNA SKYHAWK HAD STARTED TO LAND (RWY 8). I WAS LNDG IN THE WRONG DIRECTION AND ON THE WRONG RWY (RWY 26). THE SKYHAWK APPLIED PWR AND SIDESTEP TO THE R WITH NO PROBS. THERE WAS ENOUGH FOR BOTH OF US. THERE WAS NO DANGER OF AN ACCIDENT DUE TO THE RWY CONFIGN. THE RWY IS APPROX 100 FT WIDE. ONCE I WAS ON THE GND; I WAS TOLD TO CALL THE TWR. I DID. THE CTLR HAD TO CALL ME BACK. WHEN HE DID; THAT IS WHEN I FOUND OUT WHERE HE PUT HIS ATTN. HE STATED THAT THEY WOULD HAVE TO WRITE THIS UP; JUST HOW FAR IT WILL GO IS UP TO THE TWR CHIEF. NORMALLY WHEN YOU ARE COMING FROM THE E TO THE W; THE TWR TELLS YOU TO PASS OVER THE FIELD AT 1200 FT FOR THE R DOWNWIND TO RWY 8. THAT STATEMENT WAS NEVER MADE. I KNOW IT IS NO EXCUSE; BUT I WAS JUST HAVING A VERY BAD DAY. I FOUND OUT THAT I HAD TO PUT $1000 INTO SEALING UP A LEAKING FUEL TANK; AND THAT I HAD TO FLY BACK TO ZZZ1 FOR MAINT NEXT WK. I HAVE THOUGHT LONG AND HARD ON WHAT HAPPENED; AND I STILL DO NOT KNOW WHY I HAD MINDSET FOR RWY 26 INSTEAD OF RWY 8; OTHER THAN TO SAY IT WAS A TEMPORARY LAPSE IN CONCENTRATION.