Porn has me reevaluating my entire life.

• Hi there, I'm new to this forum so i apologize in advance if I'm out of line with anything. I came to this site to get help with a porn issue that has less to do with the frequency and more to do with the content. Im sorry if im long winded but i feel it is necessary that i give a full picture of my situation.
  
  So, for starters i am a 17 year old male with a serious porn problem. Not with the frequency, but the content. My porn use began sometime in middle school, beginning mostly with pictures of women wearing thongs. This over time evolved to ,believe it or not, looking at guys wearing thongs. Not soon after, i started watching full on porn with the parts and all the rest. Pretty much lesbian porn, but i would then venture out into the gay porn arena every now and then. At this time, my viewing of gay porn led to me questioning my sexuality, which i believed was straight. So, the next few months that followed were full of depression and anxiety that i was gay. This came to a point where i was so upset that i opened up to my parents about my problem, and they set up a meeting with a therapist. The therapist told me that i had HOCD and To much relief, the therapist told me that i was just a horny middle school kid that was most likely an average straight male. This made sense because i felt no romantic attraction to guys at all, just girls. The therapist also believed that my interest in the gay porn was mostly envy of the body types (i wasn't the most attractive of lads at that point in time).
  
  So fast forward a few monthsafter, i started watching porn again against my therapist's advice. This time it was mostly lesbian porn which i thought was safe 'cause how could i be gay if im fapping to just chicks right? Anyways, my porn surfing led me to watching lesbian strapon porn, and then to pegging, where a girl screws a guy with a strapon. This made me try anal simulation for the first time, and i found i liked it. This genre made me very interested in the femdom videos which was the staple for a very long time. About a year or two ago, i began watching sissy and transgendered person porn, along with the occasional gay porno. In all of these videos i visualized myself as the submissive. I believe that my interest in sissy porn is linked to me crossdressing in around middle school. I remember wearing my mothers panties and looking at myself in a mirror. This has continued since but occurred less frequently.
  
  So fast forward to two weeks ago, i was masturbating to a video where a crossdresser was getting banged by some guy and i found it really hot. I pictured myself in the cd's position, all dressed up, and found it really arousing. After i climaxed, finally asked myself, "what the fuck is wrong with me?" So after this episode, my OCD kicked in, and i for the first time in my life began questioning my own gender. I spent some time researching and saw that this type of porn actually has turned many men transgender before and this absolutely fucking terrified me. I take some solace in knowing that my interest in woman's clothing is clothing is primarily a fetish, but i have awful anxiety and cant keep the idea out of my head that i could be living a lie.
  
  Assuming that i was in fact a straight male, i have anxiety issues with how i would perform during sex with a woman. I love women very much, i have cried over not being able to be with some women, i love kissing and cuddling with women, but I'm afraid that all this porn and fantasies of being a submissive has screwed up my ability to have normal sex. I am still a virgin so im afraid i screwed myself real bad with this one. To address this issue i have a few times just masturbated to vanilla porn, but the climaxes are subpar to the ones i get watching the kinky shit.
  
  Im sorry if this post is long or poorly written. Im at a very scary point in my life right now and i find myself questioning everything there is about me. I believe that porn is my main issue here, but i cant get the possibility that i am a woman or gay or bi out of my head. Believe me, i have no problem with people that are LGBT, but i dont think i could manage living a life like that myself. If anyone is out there to give me some advice or put my mind at ease that would be great, thank you.