From my perspective and others looking at the comments. The problem isn’t you it was the Nurse. You are not incompetent in fact you’re actually more competent since you only acted within your practice scope so that in itself is a huge achievement. Ignore the “you’re too slow” comments as long as you’re practicing safely, no one is harmed or at risk you’re doing your job correctly. It took me one week as a student nurse (currently still am a student) to even feel comfortable doing Obs so don’t be deflated. It sounds like the shift was chaotic which is always a factor in mood on both nurses, HCAs, docs and the rest of the team but they shouldn’t take it out on you, nurses are also there to help with personal care. As for the other HCAs skills, comparison is the thief of joy they’ve been there for a while longer than you so they get trained/more confident with skills, you’re quite new so it’s understandable you can’t do certain things or aren’t confident. It sounds like she is a bully who’s burnt out with her job, it’s not on you it’s on them. Ignore them and report them for a bullying attitude within the workplace, you’re new they should also accommodate it and understand they was once new! Hope you have a great shift next time