Ask for what you need. I've never had to ask to be pushed because I've had T's who by their own nature and style of therapy are unafraid to push me. As a teacher, I've learned to set the bar just a bit higher than my students believe they can actually accomplish, and they are always amazed when they realize how capable they are of pushing themselves a bit beyond their comfort zone. I would hope most T's would do the same; otherwise I'd think the danger is that we stay stuck in our "safe" place. If your T isn't nudging you forward enough, talk to him/her about needing that extra push to help communicate what is going on in your head.