Sexuality

So I am bi (kinda). Some days I feel confident liking other girls and other days the thought of me being with a girl makes me uncomfortable. Is that normal and if it’s not does that mean I’m not really bi. Also I’m just gonna throw in that I am 14 and raised Catholic so I have always been taught agenst homosexuality. And do you guys have any advice on how I can really accept who I am? Any thing helps...