You are definitely not alone. As others have said, just about everyone goes through this. It's tough and takes some getting used to. After awhile it's all just muscle memory.
It's good to see you have the right attitude about it though. You are excited to go and try again and conquer that stupid chair!
You should see a marked improvement over the next couple of times you go. Just hang in there.
I had a buddy of mine go with me when I was a teenager and his board got caught as he was getting on the lift. He was stuck and it just dragged him until it lifted up a little and then he just fell off. He was incredibly embarrassed and sat in the lodge the rest of the day. He doesn't snowboard now.