If it's really a problem how about asking your instructor to come along for a few circuits, but not to help in any way, not even to talk to you, and not to answer any questions, no clarifying of the last R/T, not to say a word at all....nothing.
Just let the instructor pretend that they are not there...simulated solo as it were
The instructor is just there in case you totally loose it. If you do then they can intervene at the last moment, but other than that, for all intents and purposes you are on your own.
After 2 or 3 like that, you'll probably feel much better about them getting out
dp