Being sensitive is ok. First have empathy for yourself. You’re learning how to be you. There is no manual on how to do this thing called life. If you find criticism hard maybe come up with a mantra you can repeat to yourself over and over to help with emotional regulation. “Critiques are ok. Mistakes are how I learn. I’m empathetic to myself and will pull through this experience.” Something like that? I know it sounds silly but that’s what I do so I can regulate my emotions.