Weight Loss As My Impossible Goal

I have been with SCS since May, I have lost 85# and I have 70# to go to get to my goal weight. I am wondering, do you recommending I make my goal weight as my impossible goal for 2018? I feel really torn, I am doing well on protocol and have been losing pretty consistently so getting to my goal weight feels achievable. At the same time, I also know that the next 70# will be different than the first 85#. I am right now lighter than I have been in more than 20 years, so in some ways thinking about getting closer to goal feels completely impossible. Should I keep my focus on one thing, weight loss, or should I trust that I am doing well on my weight loss journey and I want to pick something else for my goal. Funny that losing #155 does not totally feel impossible to me right now!