Stop having sex until after our wedding

I’m not a virgin. I lost my virginity when I was 16 and have been with 5 people since then, including my fiancé. I’ve always struggled with this because I know we’re supposed to wait until marriage. I can’t change the past, but I’ve thought about not having sex with my fiancé anymore until after our wedding. It would be very hard to avoid that temptation, especially since we’ve been doing it. Has anyone else been in this situation? What did you do?