insecure during sex

KiYada • 26. Married my college sweetheart. Black lab owner. Angel Momma. Boy Mama (May 2019)
I need help being more confident during sex with The Hubs. He's never did or said anything to make me feel insecure. It's my own personal thoughts. I grew up in a religious home so sex wasn't something that was openly discussed and i've always just had this picture in my mind that it was weird and gross. But now being married to the man of my dreams I don't want to feel or think this way anymore. And it sometimes puts a damper on our relationship. Any tips?