As a girl, how is married sex like?

Since I'm only 22 and still go to college I never really know how real married life is. Especially since I am single myself. Im quite qurious how sex is when you are married. Like what are the down and upsides from it? And do you have any tips for a girl thats not married yet but wants to be? I would love to learn from a woman who actually is married, since im to young at the moment to be that.

Also if you like to say something non nsfw thats also great! like for example are you happy in you marriage? Or how is it to have kids? Or how does your life looks like from day to day? I also find this so fascinating!