How did you pick a goal weight?

So oftentimes I get into conversations about how much I am losing or want to lose. Most people are just curious because they are interested in trying the drug and I have no problems educating people who are generally curious.

So when I was healthy or thinner, it was before I had children and I was waaaay too thin for my frame. I was about 120.

So I wanted to put a goal weight in so I had something to shoot for and I always said that if I wanted to keep going, or stop before I got to it I would. It's just hard to know where to "stop". Based on the photos I'm sharing it may look like I don't need to lose much else, but I still have a gut that you can't see. It's also due to a c-section, which I know won't completely go away. I've also been told that's the last thing to die (the stubborn belly fat) and I don't know when I give up on that or if I keep going. I hope that makes sense.

I'm now officially 20 lbs shy of that goal! But I'm curious about how you guys chose your GW and what others my size/measurements chose.

Here are my stats. F/47 H: 5'4 SW: 223 CW: 175 GW: 155

Photos in comments.