I think its all the same. No matter what you have to loose. I now have 100lbs to loose, and Im feeling the same thing you are with your lbs. Regardless as to how much you have to loose, you feel like you are never going to get there.
But you will
and so will I. I read somewhere a quote that went something like this.... one usually gives up right before a breakthru to success is about to happen. Kinda made sense to me....when I got down to only 38lbs left to loose.......I gave up. Im about back to where I started
So, dont give up...keep at it and you'll break thru, and make your goal.