You said you feel like you can't text her anymore, but do you think it would help if you did? Or would it be worse to text and then perhaps not get a response? I'm sorry your T isn't as available, and not being able to get an appointment doesn't sound at all helpful. It might be time to consider a new T that is more available. If you want to keep working with this T just be assertive to try to get an appointment and keep calling until you get one. Hugs if you want them.