Down there

Okay so I’m in college and this just randomly started but my vagina is like itchy at like night or some random times and it use to feel so good when I wiped myself after peeing. But like I keep looking down there and it looks the same. I want to go to the doctor but my “father” canceled my insurance even though I’m underage and he isn’t allowed to. I feel weird if I go to the school nurse because it’s down there but i don’t know what it is and I don’t know what to do I’ve read up on it and I feel like it’s a yeast infection but I don’t know I never had anything wrong.