I'm failing, feeling like I'm letting myself and everyone down

You definitely aren't failing - you've realised you need to do something, and I'm guessing you know what that is considering you know how you put the weight on.

Start making changes - get back to tracking, and start moving more in other ways to compensate for less activity at work.

You are succeeding. You realized the problem and the root cause and are taking sensible steps to fix it. That is success!!!Congratulations

Well, I gained until I got scared enough to do something about it. I've been on WL boards a while, always chuckle at posts that say fear is not a motivator. Sure motivated me.

Looking back, I think CPAP saved my life. All of a sudden I could do a bit of clear headed thinking. I was just sort of fatting myself to death. I was going to leave two kids with no dad. Who would do something like that? So I relate to the idea of letting other people down. And ultimately what that would say about me.

Calculate a modest calorie deficit. Find a way to be a bit more active. Keep tracking. When I started WL I read somewhere that a food journal was the #1 thing to do.

I've lost 100+ lbs and its been gone 10 yrs. I always got good advice from my Gram, let me try to give back.

Keep tracking no matter what. The good, the bad and the ugly. The initial calculations can be a pain. Weigh and measure (weigh is preferable) when possible. Research NI, or make good faith estimates when you must. When you get the numbers right you should get the scale going on a modest downward trend. The trend is your friend. Ride along. When (if) you stall, make moderate adjustments to get your trend back.

Monitor your thinking. Push back against negative thoughts. Nobody can stop negativity from popping into their heads. Our brains never shut off, a lot of what it spews out is junk. There's something about obesity that grabs the negative. Don't let your brain convince you that every hiccup is a disaster.

What I see on these boards is that the #1 stumbling block is this- time. In the long run, and you are in for the long run, it probably takes 1 or 2 weeks for every pound you want to lose. That's the part of the trend that people's brains attack first, the time. Don't use this to kick yourself for gaining. It took time to gain, it takes time to lose.
That's why I keep talking about moderate changes, you have to be able to live with your plan. The best plan is one you will actually follow. If your plan is not working, make a better plan.

PS From your screen name I've assumed you're a grandmother and were either born in '59 or were 59 when you opened your account. If it helps, I joined WW at age 56. I'm 67. I weigh about what I did when I graduated high school. It's doable.

PPS Motivation is unreliable. Think determination. Good luck. Sorry this is so long, you struck a nerve.