hello and welcome. Honey best thing you can do is relax and enjoy it. self exploration is the answer and if you know what you like doin then you got the solution to best orgasm ever.
Unfortunately for us women having sex and a partner never came with a guide book so you go back to basics.
I refer to it as my tuning into my body time and as long as you are comfortable with it then go for it.
guide your partner to what you need and where you feel it most erotic. In teaching yourself you also have to teach your partner and then you will not get enough of each other.
You are doin nothing wrong i think you just need to spice up your sex life a little bit.

It's also normal for the majority of women not to orgasm with intercourse. Some women can only orgasm through manual stimulation and oral sex.

the doctor said some women have orgasm from penetration, some have it by masturbation, or oral sex, some women dont have it at all.
i can orgams during oral sex and masturbation.
you have to explore your body. for example i can orgasm by self masturbation. i had a girlfriend who could not, but she was able to use a removable shower head and lying in a tub with her legs open letting the luke warm water run on her clitoris.
so find out what you like, even introduce toys in the mix.
a vibrator with a clit stimulator