I am glad you posted about this as you have received great responses so far! There are so many people who will lose their resolve to lose weight and then just disappear for a while. And when they come back they gained back most, if not all, of the weight they worked so hard getting off in the first place.
And
YOU have put a lot of hard work in this past year. Do
NOT give up now! If you spent a year hiking across country from California to NY, would you get to Pennsylvania and just say "Screw it, I'm done". Stupid analogy but this is pretty much the same thing.
You are more than half way to goal and that is something to be very proud of!