I'm Christian I lost my virginity at 16 I feel shameful and I need advice

So yes you all may be saying woah she's 16 but It happened.I had sex in a party in March 2019. I really loved this boy well now currently my ex. I'm not allowed to date so I did behind my parents back. There isn't anyone I can ask for advice or simply turn too because I'm the Christian girl at school and I can't tell my parents at all, and I don't want to be judged at youth group. I know what I did is wrong and I realized that too late. Is there any advice you fellow sisters in Christ can give me ? I have to make amends with God but I feel like he won't acept my apology because I enjoyed having sex. I feel lost if you guys can pray for me as well.