Advice?

I had a a boyfriend for over a year and he dumped me roughly a year and a half ago. Ever since then i have felt that I want to date boys and girls. I’m not sure wether it’s just that break up that makes me feel this way or if I actually do like girls as well as boys. I feel more strongly towards girls but honestly no idea what to do.I’m 14 so I’m probably just over reacting tbh. Anyone have any advice on this?