Hi, there is lot of material available for COPA practical exam. They have their official website to guide the students for their exams, the link to it is added at the end of this answer. It is not as difficult as you think it might be. You can also find Youtube videos of it and you can choose any of the channels that you are comfortable with. Hope this helps.

https://www.copaguide.com/2020/11/iti-copa-ncvt-practical-exam-paper.html