It's taken me a long time. My weight loss has been in fits and bursts -- in part because I have been battling a thyroid disorder are my levels haven't been stable. It's easiest for me to lose why my levels are stable and normal. I haven't been at my largest in 5 years, so it's been mostly a combination of losing with periods of maintaining. But maintaining is a feat in and of itself. I had a weight loss buddy five years ago. She lost weight along with me, but then stopped and over the past two or three years has gained every pound back.
I'm also in no rush at all. I'm focused on losing and maintaining. I'm very happy with slow because to me, slow says I'm developing the right habits to keep it off forever. I've also changed my tastes and preferences for foods. My diet is radically different than what it used to be and I'm mostly genuinely not interested in what used to be my favorite foods. There are some things I still love that used to be favorites, but I eat much smaller portions and I balance them with better choices.
My next goal time is March 29, when we go back to France for a trip. I would really really love to be another 22 pounds down by then, and I'm hoping I can stay focused enough to do it. I'm hoping we've finally beaten my thyroid into submission for good (I got radioactive ablation that didn't take at first, but now seems to be working).
Certainly a pound a week is a very reasonable and achievable goal. However weight loss does seem to slow down when one is closer to their goal weight. As for weight, I always go for the lowest number! Well, honestly, I'm a scale junkie. I weight daily on a fitbit scale that records the weights. I weigh first thing when I get up. But if I go to the bathroom and think I may be substantially lighter, I might weigh myself a second time. Of course I take the lowest number and delete the higher one. Fitbit averages all the weights in a week, and while I like the lowest number, I grudgingly admit that perhaps the weekly average weight they calculate is more accurate.
And of course I firmly believe that 0.2 pounds lost is absolutely fat loss and an achievement while clearly 2lbs gained has to be water!

But seriously, our bodies fluctuate so much. We shouldn't get too wrapped up in it. Do the right thing and keep on keeping on. It won't show on the scale every day. But it will show eventually. and if you want backup to the scale, use a measuring tape.