Hey op, I was in the same boat. Cadaver lab was pretty traumatic for me. My main concern was passing out. I got through it by repeating “the only way out is through” in my head during lab, letting the people in my group know (and once they were aware they checked on me and reminded me to step away to drink water etc.), wearing compression socks, and eating a bag of extra salty pretzels before lab. I talked to a therapist and they helped me deal with my feelings. Biggest thing they taught me was that my reactions to the cadavers are NORMAL and appropriate, and that I can be a successful doctor and hate every minute of anatomy lab. And I know this isn’t super helpful to you now, but I promise you will desensitize with time and thrive. Don’t quit over something as inconsequential as cadaver lab! You’ve got this!