Please help me in my relationship.?

I think you may have a serious mental illness called bipolar, because you keep changing your mind and feel differently about things on different days. If not, you may be a commitmentphobe. Either way, let your gf know. If you think your relationship is hurting her, take a break, find yourself, and if she still wants you, take her back. This is a tough situation, but I hope you can pull through! good luck!