That's so strange. Why didn't you return?
I don't know how old are you but you know you can still be graduating no matter your age.
I didn't understand the doctrine and was in a phase of my life where I considered all Christians were insane for believing a dead man. No one at that time wanted to take the time to explain it to me, so I figured no one really cared. Right now I'm 34. I got a certificate of completion the second time, I had a seminary teacher who actually took time to answer all of my questions. I think I drove him nuts.
After I marry I'm going to try and become a seminary teacher or institute teacher.
I really enjoyed it. I was fortunate (In my opinion) to not have to get up so early to attend morning seminary. I lived in Arizona in an LDS settled community so we were able to get time off during high school periods to attend seminary in the building across the street. It was one of my favorite "periods" during high school.