Don't feel bad, the farthest down I've ever gotten Thunderhead was two clicks. Back in my heaviest days in 2005 when it was new, I had to basically take off my coat and have them push really hard to fit me in the ride. Thankfully those days are behind me as I've been able to get my one or two clicks all by myself when visiting.
But yeah, good luck with everything. It's been a struggle for me, but I think I'm in a good place now with my diet and exercise routine.