Am I still a Christian?

My partner and I have been friends since we were 6 and we will get married when we are 20. I am 18 now and I have decided to wait until marriage. But lately I’ve been wanting him so badly. I have not had sex with him, but we have had a few heavy make out sessions. I don’t feel as guilty as I feel like I should, but I want to be better. Am I still a Christian?