SEX LIFE SOS

I’m 22 my fiancé is 23. We have twin girls that are 1. Our sex life sucks. It’s like we are two 35 year olds with 12 kids who have been together since high school. If it happens it’s the same thing over and over. What are some things to “spice it up”? Like actual things he would like? And to actually give us the energy to do it🤦🏼‍♀️ calling for a friend 😅