Yep, you got fridging going on--but good on you for recognizing it early. Now it's on you to change it.
Fridging is (basically) when a female character's death propels a male character on either an internal or external journey (or both). In your case, your Goose character is 100% fridging. "[H]er awful treatment is what pushed Goose to seek to change."
For your other character, still feels like fridging but I can't say as concretely with just the info you provided (I'm giving you the benefit of the doubt).
Not gonna suggest to you how to fix it 'cause I tend to agree with Neil Gaiman here. Good luck and, again, I'm glad you pinpointed this early and want to fix it.
I'd think YA paranormal, so great if that's what you're going for (sort of a spiritual successor to Grunge, Gods, and Graveyards or tangentially related to Angus, Thongs, and Full-Frontal Snogging). X, Y, and Z is a common YA title construction.
I have Markor installed on my phone for exactly that.
I picked that app, because it creates files on my phone that are backed up, (and readable) using syncthing, so that when my phone dies, (or is broken/stolen) I have the latest copy of all of my notes on my house server. [Most of the other notes apps either send it to "the cloud" where it can be leaked/stolen/lots, or they save in some database format, which makes it hard to read directly from the backups.]
I work in IT, so I'm using a specialized tool to write and plan (well, it can be used for everything, but cooking!). It's called emacs, with a personalized configuration. I don't recommend it to anyone, unless you are somewhat computer savvy, and even then, it's difficult to learn and configure. So, that's for the program.
For the structure, right now I'm following John Truby's The anatomy of story. I'm not going to lie to you, I think it's a good book, but really difficult to apply it all to my work, so I cut some corners. Probably the final result is not going to be good, but I take it as a practice for the next one.