I feel like I've had a very abnormal sex life so I have questions...

For what it's worth, I'm female-sexed (although I have some gender dysphoria and identify more as genderfluid) and bisexual with a male partner.

Is it unreasonable to hope that intercourse would last 3-5 minutes or so at least most of the time?

How do you build emotional intimacy in sex, especially if you never have intercourse? But in general, how do you make foreplay satisfying without intercourse or orgasm?

Is it more difficult for someone bisexual (especially one who's only had partners of one sex) to have an orgasm with a partner? Is it more difficult for someone with gender dysphoria to have an orgasm with a partner who is attracted to their sex more than their gender?

Is it more difficult to figure out how to have an orgasm if both partners are relatively experienced/don't have many positive experiences?

Are there any other women/female-sexed individuals who have never had an orgasm from oral sex, manual sex, or a partner using a toy, but almost never have an issue with masturbation and porn?

Has anyone with severe sexual dysfunction (and/or having a partner with it) ever have it improve and have a satisfying sex life?

I realize no one's going to know the answer to all of the questions, but just an answer to one or two would be useful.