What convinced you?

This post is made by a non-believer, although I WISH, and I've said for years I wish I believed in god. But I refuse to pretend that I do when I know I do not. When that is said, I do believe that God is good for earth, and makes the world a better place or well the idea of him, but I guess that in a sense is him doing it, and I hope that some of your stories or tips could help me get convinced that God is here for us. So I wanted to know what made you 100% certain that God is real?

This is really serious to me, and it is something I've struggled with for a long time now. I do feel a little lost at this point. Also, Merry Christmas to all of you!