You're not alone. There have been many times when I'm obsessively thinking about my next session, literally counting down the days and hours (1 day, 11 hours and 23 minutes, but who's counting )

I would say bring it up with your T if you feel it's really impacting your daily life (like you're not able to get work done). In the meantime, try to find a hobby or something to occupy your time. If you find a hobby or other activity you enjoy, that WILL make the time go by faster.