This is going to sound strange, but here goes:
Does anyone ever stress out that, no matter what, they're going to stop making progress? That even if you stuck to your lifestyle changes perfectly forever, your body is just going to get stuck. I freak out about this every time I step on the scale, and especially recently since I've been hovering around 230 for almost a month now.
I know it's irrational, and I know that I'm eating less calories than I burn, and that eventually it will catch up with me, but I still have a little voice in the back of my head that tells me: "this is it! You're done! Not even 40 pounds and you're done!"
Luckily, I use that voice to stay on plan, and work harder for better results, but I don't think the voice will ever go away. I'm sure one day I will be pushing 50 pounds, and it will be telling me I'm stuck. Same for 60, 70, 80, 90, and 100.
It is the suckiest little voice, and it's one that I can imagine would derail a lot of people. I know it's derailed me in the past.
I guess this is the time when it stops being a thrill, where pounds are melting off every week, and it becomes a trudge through the mire to get to the other side. Which is super pessimistic of me, but at least there is a goal at the other end. I'm happy to spend time trudging if eventually I reach said goal.
Anyway, I guess I'm just hoping that other people have heard that little voice as well, telling you that you've come as far as you're going to come.