I don't want to be judgemental or something along those lines but just ditch porn altogether.
According to Andrew Huberman (neurobiologist at Stanford medical school), porn is harmful because you wire your brain to feel pleasure from a 3rd person's view from watching it instead of having sex which is a 1st person-view activity, thus you wire your brain to be a voyeur and you'll no longer feel pleasure from sexual intercourse.
In your case, OP, porn has caused you confusion because as you said, vanilla stuff doesn't arouse you anymore and you need something more "exciting". Here's why:
Every human and animal has a chemical called dopamine. Dopamine is a feel-good neurotransmitter and it is responsible for movement, memory, pleasure/joy, learning, mood, concentration, motivation, etc.
Every time we engage in a high-dopaminergic activity, much like drugs i.e. cocaine, or meth, our dopamine levels adjust to this stimulus (now this is quite correct but I am trying to keep it as simple as possible).
When we take too much dopamine due to homeostasis (a mechanism for keeping chemical balance), then our dopamine go below baseline because the stimulus was supernatural.
Porn is exactly the same thing as sniffing cocaine because much like cocaine, it increases dopamine above baseline by about 250% and it crashes immediately after finishing watching it you feel depressed as a consequence and you lack energy.
So to get the same "high" and compensate for your depressed feeling, you need more and more of that stimulus (in your case porn) and this means you're addicted to it OP and you have to do something about it ASAP, or else you will fry your dopamine receptors and you will no longer feel joy in life!
TLDR; OP you ****ed up your brain chemistry, specifically dopamine (Read the entire thing please) and this causes an indirect confusion with your sexuality because of how supernatural stimulus porn is.