*hugs* My consolations but also I’m glad you like your new dog! I’m sure Trixie is watching you from heaven (and possibly is talking with Lana, since some of my family’s old ((and now gone)) dogs seem to communicate with our current dog!)
parting with your doggo is never easy, especially if you had her for so long, but try and focus on Lana now, while remembering the good times with Trixie, it's not ideal, but it's the best one can do