Is this normal?

I'm a female and I'm 19 going on 20. My whole entire life I've always been with guys. I've never done anything with a girl or dated a girl. The thought has always lingered in my mind and I've always been attracted to girls but because I've never really met or have gotten to know anyone that is a part of the lgbt community, I always assumed it wasn't who I was. However, this past year I've been battling depression and anxiety to where I've kept to myself a majority of the time. During that time, I started to think about myself and tried to figure out who I was and what I wanted out of life. I've always dated guys but every single one I've been with there's always been something missing. I've thought they were attractive but I could never connect to them the way I thought you were supposed to connect with someone you're in a relationship with. When I look at girls though, I get so excited and attracted to them. It's not in a curiosity sort of way. I just find them much more appealing mentally and physically. I've crushed on my best friend who was a girl in the past because she was so beautiful, so funny, sweet, caring, and so much fun to be around. But things changed and she and I don't speak. There was another girl before her that I also liked but I wouldn't let it go anywhere because I was afraid of being bullied. I regret that now because I denied who I was/am. My question is, is it normal for me to find some guys attractive, but not want to be in a relationship with them even though I have in the past, and still be a lesbian? All I want is to be with a girl, it just sounds and feels more right than how I felt being in all of my relationships with the opposite sex combined.