Michelle, I am sure that by now you have sorted it all out. I would have advised that you walk through the flight in the ground, picturing the circuit, and a touch-and-go, and just keep repeating this on the ground, walking it out, and picturing the flight in your minds eye. This will build the neural pathways in your brain that can help you overcome this.
Another way is once you stop, then you can simply backtrack and take off again. Repeat process up to four times for your flight. A flight lesson should not exceed 1.5 hrs, (excluding Navigation of course), as ones focus starts to deteriorate.
Kind Regards
Telani