Ouch! That's a while to manage without a Therapist. Because it's for so long, if it were me I would arrange to see an interim therapist or go to a group. Maybe your therapist can refer you to a colleague willing to fill in (not all would) but worth a try. What about all the other patients? I have to assume that when my T goes on his extended world travels, he must have patients in more acute need than me and must do something for them.

My T is leaving the end of the month and I will probably miss 4-5 sessions. That is too long for me to manage. I'm fortunate he has a colleage in his office who I saw during his last vacation. It helped me greatly to have someone to talk to on the same schedule as before each week. I'm going to ask for this again.

I also see a PDOC periodically, sometimes I schedule a session with him during the absence as he does therapy with me as well as meds.

And, I'm thinking of doing some trauma work that I'm not currently doing with my therapist.
I have done sacral cranial release in the past. A type of yoga/trauma therapy. I met once with a psychotherapist who does hypnotism and other trauma work. I might see him a couple of times to target this specifically.

Nothing can replace my beloved Therapist, but these things help me get by. He also keeps in touch with me via email occassionally no matter where in the world he may be. I wish he would just keep his butt in his seat!!! But, the traveling is important to him to keep him from burning out and I respect that.

I hope you find some ways to fill the void.