How to keep going when you feel your weight loss isn't "good enough"

I made a new year's resolution this year to lose weight. I started at 265 at the beginning of the year. I have been making a lot of changes to my lifestyle, and I've been working really hard and very slowly losing weight. I am at 246 today, and I feel like my progress isn't good enough. I spent 10 months really trying, and for what? Not even twenty pounds? I don't really feel or look a lot different. I put in so much work and I feel really discouraged from continuing. How do you keep going? I feel like I'll never get to a healthy weight.