The hardest part is forgiving yourself but if she did forgive then you deserve a second chance and she trust you so you have to forgive yourself and do your best to prove that you deserved the second chance
she did forgive me but I did not forgive myself :(
What you do is ask your girlfriend to come round, sit her on your bed, talk things through, kiss hug and make up, order a take away and let her sleep the night:)
I'm sure your gf loves you but she's just sad because of what you did so you only have to find the best way to show her that you're sorry. and If you need talk about it I'm good at this
she is so great she was so understanding and it is all good now she forgave me but I did not forgive myself