Difficult Win to Achieve All-Time High FICS Rating

I probably should have lost this game as my position was not very desirable.  Luckily, my opponent let me exchange my knight for his dark-square bishop without any compensation.  After this win I managed to reach my all-time high FICS rating.  It's seems very difficult for me to break the 1800 barrier.  Maybe it's psychological or I need more work.