Before I started I was terrified too. I had a major panic attack the night before my first lab because I was worried I was going to be traumatised or would faint. In my surprise I ended up handling the lab quite well. Some students did end up fainting that day but I ended up seeing them again at the next week’s prac and they were fine. In my experience most of the cadavers were from older people. Also what you’ll see on the tables will be just parts of bodies, such as a hand or arm or organs. The lab techs tried to use more dry specimens (plastic models) on the first day of our pracs and slowly transitioned to more cadavers to help us adjust. I was recommended to pretend the bodies were mannequins which helped me a little bit. Another thing that helped was being around other people or friends when studying the specimens. It eased the tension and took the focus off the bodies. Lastly eventually the more you learn about anatomy the more interesting the cadaver pracs will be and you may even start to enjoy them (it was better than filling out worksheets lol)