That is great that she is making some progress at least! I wish I had’ve done more things like that. In the beginning, if you don’t mind me asking, how did you get her to transition to being less needy without her getting overly distressed?
Was the one you ordered primarily a chicken diaper by chance? I found that even the chicken diapers do fit *on* them, they just don’t fit *right*. Because goslings grow so rapidly, it’s extra difficult to order diapers that fit. When you ordered it, it may be the right size, but by the time it gets there she may have already outgrown it! Several sizes are definitely necessary
The only one my girl would tolerate for any length of time was The Goose Mothers. They do have a set of 5 meant for a growing gosling but I've only tried the adult one. Seemed very comfy but my goose also could just pull the diaper to the side of her butt, rendering it useless... pretty sure she'd stick her tongue out at me after too!

My gander liked that one and also liked the ones by Leighton's Landing on Etsy. She is really helpful and happy to help before and after you order.
Crazy K Farm says theirs works for geese but they just didn't fit right at all. They were too short to even reach their bottoms. I've heard people have great success with their shoes though.
While PartyFowl Pets diapers are well constructed, their customer service is pretty darn terrible. They lie, their size charts are all wrong, they regularly take 2 months to ship out ready made/"ready to ship now" items. If there's a problem with your order, you probably won't hear back for a month or two, if you hear back at all, and they'll just tell you that there's nothing they can do, no refunds of any kind, and to order a new one. I love supporting small businesses and they're mostly great but ever since that whole ordeal I am a bit more cautious.
We tried a couple others that I can't remember the names of right now, but they were made entirely of cotton which I don't think works well for geese. I feel like they need a bit of stretch to be comfortable. Over the tail works great for babies but as she gets older she will probably prefer the open tail ones which allows them to access their preen gland.
That is great that you have already made her some! This is the route that I ultimately went with. I had very little sewing experience prior but with my girl being so finicky I had to try, and I just make all of theirs now. Bonus is that you'll have access to many more prints and colours, you can tailor it to fit them just right, and they are so much cheaper.
That's probably way more info than you were looking for, sorry! I hope that helps a bit though!