Sorry to hear some annoying stuff is just unavoidable.. they probably just thought you were better than her so instead of her in your spot they put her in a place she could handle.. if i were you i'd just make buddies with a male cna and let him know your situation and ask him if it's ok to get help when needed.. once friendly with someone it won't seem so awkward to ask for favors.. just make sure to let him know you can help him when needed too.. good luck!