I see my t biweekly, too. At this point I'm used to it and I don't think going weekly would be beneficial to me anymore, but at first the wait between two weeks was horrible. I've found that journaling helped me a lot. When I was missing my t, I'd journal in a way that mimicked me talking to her. It helped when I was really missing her.

I also make sure to keep myself busy if I'm finding the wait between sessions to be particularly hard. My last session was about a month ago, and because of schedule conflicts I won't see her until next week. I've had some hard life stuff come up during this break and it's been hard not seeing my t. So I've done everything from Netflix binges to picking up double work shifts to keep my mind off not seeing my t for so long.