Hi Gabby,
If I were you I'd read Luke 7: 36 to 50. It's helped me along the way a lot.
It's about a woman, who was a prostitute, and she wept at Jesus feet, and Jesus forgave her because she was so repentant and loved him so much.
And then there was this Pharisee, who had sinned little, but he loved Jesus little.
So it's a lesson for all of us who have sinned, we don't need to have been prostitutes for that. I'm 25 and I was saved when I was 24, and I wasn't a virgin. That chewed me up a bit for a while, but because I repented, which means asking for forgiveness and turning the other way and not doing it again, Jesus forgave me and he loves me so much, and I him.
The past is washed away by the blood of Jesus.
And if you get thoughts of I'm not good enough because I'm not a virgin, it's not God, it's the devil. As far as Jesus is concerned, when you repented and asked for forgiveness, you became a virgin again.
That virginity is precious, so save it for marriage.
A good book to read on this theme is Lisa Bevere's "Kissed the Girls and Made Them Cry".