not doing well at new job

I am currently a high school student and i recently got a new job as an LNA. I have been working there for about a month now and i feel like there hasnt been one night that i havent made a simple mistake such as cleaning the room after care or forgetting to chart treatments. I feel that i should be doing a better job than I am. I also get very stressed out when i constantly make the same mistakes. Sometimes i will stay up all night crying because i feel that I am not doing anything right. Does anyone have any suggestions or advice? Thank you
You can work nights and perform treatments as a HS student? And after one month? That sounds like too much responsibility without adequate training but perhaps I'm behind the times.

What kind of treatments?

I usually work a 4-9 or 5-9. the treatments are things like itch creams and powders for stomach folds. I always remember to apply them but i sometimes forget to document and it stresses me out to the max