Impossible goal

I am 15 pounds away from my goal weight (have lost 35). I will get there, likely in the next 3 months.

Obviously, my goal weight doesn’t fit in the impossible goal category because I know that I’m going to do it. However, when I started losing weight, I made the mistake of pursuing too many goals at one time. I constrained to just weight loss.

Shouldn’t I only focus on weight loss until I’m completely done and then choose an impossible goal?