Muslim Women or Christian Women

I lost my virginity. I thought we were going to last— but we didn't. I pray to God, the All-Forgiving, but I cannot forgive myself. How do I get over my horrid shame? For others, losing their virginity at a young age is perfectly acceptable and I'm not to judge them, however I always seem to judge myself. I'm new here so idk if this is where I should put this post... sorry!