Yep. Your tolerance will grow and grow, especially if you are desiring to 'feel something' Get out now. I'm in the midst of Benzo withdrawals (valium this time). and they are awwwwffffuuuulllllllll. I started off on 7.5mg a day and ended up on 150mg a day. I could easily have climbed up way higher too.
I am convinced benzodiazepines are the devils drug. Once you stop the anxiety comes back ten fold and they are so hard to kick.