Sounds like they've got to you. I really admire you for going into Nursing. You've clearly got a vocation and you're following it. There's a terrible gender imbalance in all of the Allied Health Professions at the moment, especially nursing. Both types of people need care, but if they feel they want a male nurse, speech and language therapist or OT, for whatever reason, chances are they won't be able to get one due to lack of availability. We need more men in nursing. I think service users even find it off-putting sometimes. One of my male students is becoming a nurse and when he did experience on a cancer unit he was really welcomed by the men on the ward. He was someone for the men to talk to in the chemo lounge about things that men are generally more interested in like football and stuff. That was what really cemented it for him. The nursing staff said it was the most cheerful and lively some of those patients had been in weeks. He saw he could really make a difference and that his sex was actually an asset to the ward.*
You're there to be a professional. Your sex or gender identity does not prevent you from being a professional. Saying that men don't do caring is like saying men don't do nappies or teaching.*
Your school's attitude is sexist. Would they be discouraging girls from doing it? Probably not. And maths and chemistry A level are excellent for nursing. The pharmacology modules are usually the poorest scored of any in a nursing degree, so you'll sail through it. More nurses should take them as A levels really.*You'll do well. If anything, with your English Language A level, I'd be pushing you to consider something like an SLT. More males needed there too!*