I don’t understand

I feel so sad, alone, scared and hopeless. Until two months ago there was not even the remote possibility of being anything other than heterosexual and now the idea that I could find out that I was lesbian or bisexual terrifies me to death. Everything was born from the fact that I didn't feel sexual desire towards my ex-boyfriend and I started to be afraid that it was because I was a lesbian... how can I be a lesbian or bisexual if everything was born from this? I would like to run away from myself and my head. I would really like to go back and go back to my life before. I can't take it anymore. I just want to live my life like before

Sorry long post. Anyone feel like now they’re just in extreme denial. Like when I was little I noticed guys more than girls in movies and was more drawn to them. I remember changing my mindset to switch that. 98%of my life has been straight until recently. I felt drawn to some guys but never thought of it sexually. Always had girl crushes dreams and porn. Now I watch porn and I feel like straight takes longer and then I go and watch gay porn and feel nothing until I tell myself it’s two attractive dudes and love is love and imagine physical sensations and then it hits like suddenly. Like I have to convince myself it’s alright. Then when I try again I can do all that but feel nothing and then straight porn works. Idk if it’s just getting a fix or the first time works with anything or what but it’s confusing. On top of that I’ve felt girl relationships including my wife maybe miss something and a guy maybe matches that feeling that but then I feel like I’d be missing something without a girl or my wife. Idk I’ve had some rough times in life with male figures in my life but idk. I feel like I have to convince myself more and more that I’m straight even more than the first time I dealt with this. Can someone relate? Please

I’ve completely lost myself. I can’t focus on my studies, I can’t go to the gym. Dang it I can’t even be around my male friends normally anymore. I got no idea why or how this happened but the only thing I know for sure is that I never questioned my sexuality neither doubted it. I never cared in general. I just liked girls. I keep testing and keep testing and keep testing my arousal but no matter how many times I see but I don’t feel the same way for guys that I do with girls my mind will always try to make me believe that I am gay. It’s like it’s forcing me into an identity I never asked for. But at the end of the day like my psychologist told me. Sexuality doesn’t change. So since I never felt anything for guys in my life it’s ocd. I’ve been up and down for 5 months now and while the last week I was feeling way better. Monday now and I’m back to zero. I just want to go back when everything was normal. I can’t keep living with this.