Welcome Justine. Well done on your weight loss achievement so far!!! Congrats!!!
How have you done it?! 3FC is awesome. I joined 40lbs into my journey too when I'd lost motivation too and kind of stalled. So I totally understand.
The biggest thing I've learned about motivation is that it's temporary. Your plan has to become such a part of your life that you keep on keeping on even when you don't feel like because it's a lifestyle thing. Commit to 3 months on plan, just 3 months; tell yourself that after 3 months, if you're not happy, you never have to do it again. I guarantee that you'll never regret 3 months on plan. And then after 3 months, you can celebrate, re-evaluate and make another commitment.
One thing I've found helped to make me stay encouraged is mini-goals. Whether these were to do with health or fitness, they're sooooo helpful. Make them super small, even 5lbs or less for a weight goal, or walking/jogging a mile or half a mile. Join a challenge here on 3FC, post here daily to keep you honest. I'm telling you, these things help. You've done sooooo well so far, certainly too well to give up and go back. You can totally do this and beat any statistic that says you'll give up!