I can't do deadlines anymore. I feel like I spent my entire 20s and a lot of my 30s saying "lose x pounds by x event". I would make progress some of the time (others not so much), and then when the event came and went, it would all pop back on and then some. I did that all the way up to 350!
For me and me alone, my *almost* sole focus this time around has been on the behaviors necessary to get a positive relationship with healthy food and exercise, and the weight is coming off, almost incidentally. I've even been weighing just once a month, and that is just to track what's going on.
Of course there are things I would prefer to be smaller for. Last year when I went to Disney I was at my highest weight and still had a blast, even though the seatbelt on the plane didn't fit and I was practically crawling by the end of the week.
So I do think to myself, "I wonder how much weight I will have lost by the time I go again next November, and how much better will I feel there!" Which is better for my mindset than "I must have lost 102.5 lbs by the next time I go to Disney, or I have failed!". I have an all-or-nothing attitude I'm trying to work through, though, and have a LOT of weight to lose. So I'm sure those things factor in to why I need to make a point of what I tell myself.