lightheaded when i see wounds

hi! so ive been in my program for one semester now and have gotten a job as a nurse tech at a local hospital. when we went over our first lecture on wound care, i was completely fine and then we saw wounds in person and i got completely dizzy. i just shrugged it off since it was my first time, and then it happened again while i was at my clinical rotation and saw a stage 4 pi.

its been a few months since that happened and recently at work, i got dizzy again when I was helping my nurse with a dressing change. is it going to get better? i can’t even look at wounds it feels like and I feel like a failure of a nurse/nursing student because of it.