Although he perfectly spelled out "perfectionism" to win the sixth-grade level of the city spelling bee, Jesse Yi, 11, wasn't too sure going in."I tried to make myself confident in the beginning, saying, 'It's OK if I don't win. I'm glad I just got here,'" he said. "So I'm shocked that I actually won."After winning bees at their respective schools, sixth-, seventh- and eighth-grade students competed in the annual citywide spelling bee Thursday at Bethlehem Lutheran School. Winners advanced to the state competition in Las Vegas.It will be the second time at the state bee for Carson Middle School seventh-grader …