At this time, moving on to a new trainer is what is right.
I do think, in terms of lessons learned, it might be helpful to think about if a conversation could have or should have happened earlier to make it clear that you really wanted to be able to move in to the trainer’s barn. I also think that it’s important to communicate goals to the trainer with regularity, especially with a junior, where their needs can change quickly. People want teens to advocate for themselves but not all teens are really able to do this, especially not with someone who is important to them.
A lot of people who become professional trainers aren’t great with people or fair business practices and don’t notice their own blind spots. Things like making sure you post and announce clinics or shows, instead of assuming who would be interested in going. Things like offering services to a new client and totally overlooking the longtime, loyal, patient client. This probably won’t be the last time you encounter that, so you can consider whether in the future it will work better to communicate and possible help develop that trainer better, or if you need to leave sooner.
I hope the new trainer works out great for you and your daughter.