I do research in the lab and for about three years, I avoided working with other people. I started seeing a therapist and began the CBT two months ago. He said I need to do exposure. A new student just got into my lab and asked if he can observe while I am doing the experiments. It was a good chance for exposure so I convinced myself to try. But while doing it, my heart started to beat so fast and my hands trembled. I had to use every bit of my energy to control myself. Luckily it was a simple experiment and didn't take long. Another minute I would have lost control. I know I need to do as much exposure as possible, but now I find it hard to convince myself to do it again. If the fear of my hands trembling actually comes true, what am I supposed to do?