Is it normal to be confused about your sexuality for a long time?

I'm 17 and I've basically been questioning since I was 14. I had my first girlfriend online when I was 14 and I loved her ... But she cheated on me .. I was on and off with her for over a year . Then I dated a guy after her then dated her again. I dated a few other girls online after her ( I wasn't out of the closet so most of my relationships were long distance it's stupid I know ) So then I came to the realization I loved my best friend or at least had a crush on her ... And I still feel that way about her . Then I dated this boy tommy ... And we did sexual things but didn't have sex . And it wasn't bad dating him but I was at his birthday party and my friend Sam ( girl who is bisexual) was there and I was laying my head on her lap and it was amazing I had butterflies. But she left to go lay with her boyfriend ... Then I went back to tommy... But I still felt hurt and jealous. Also I feel jealous of my best friend whenever she brings up her boyfriend . I'm attracted to girls , sexually and emotionally. I'm attracted to guys but I wouldn't have sex with them bc I don't like the idea of penetration ... And I wouldn't do oral on a guy either. Anyway I keep doubting my sexuality because I have never been with a girl so what if like ... I'm actually straight ? Also I know a lot of people are biphobia so I feel pressure to either be straight or be a lesbian ... So what do you think would I be more lesbian , bisexual or straight? ( I know only I can determine my sexuality but if u had to guess from the information I've given) . Also if u have some tips on how I can stop being so confused.. That would be great. Thank you so much for reading this and I'm sorry if I wasted your time or sound stupid .

 

Thank you for understanding . I do get frustrated a lot but your right I should be patient . Thank u.