I'm happy and proud of you finding that space!
I think doing what you're thinking of doing is a good idea, a very good idea. And this seems like a natural starting point, since you've really already started.
Don't worry about holding on to this space looking ahead too far .... just think about holding on to it in this moment, in this day, and be mindful of how good and settled it feels to have it this way. Secure enough to be separate from T yet know she is still there for the moments of greater need ....