So I met this girl in my class and we became friends. We went to a park and she confessed her feelings for me and I was so excited about our newly made relationship as I also had feelings for her. A few days later she asked me to have sex with her and I did it with her without a second thought. I'm only 13 and I genuinely feel disgusted at what I've done and I deeply regret doing it her and being that undisciplined to do a such thing. I feel like my repentance isn't sincere enough despite all my regret. Is Allah going to forgive me?