Absolutely. He, Jesus, did it all. The Holy Spirit revealed Jesus to me and Jesus reveal God to me as a loving Father rather than the strict finger pointer I had previously though him to be. He still does it all. Not one of us can change ourselves just as a leopard can't change its spots. But when we open our hearts and ourselves to Jesus he can and will transform us by the renewing of our minds as the scriptures tell us.
If you have, in the past, been a true, born again Christian then, in spite of your current thinking, you still are. But you are in the wilderness where it is scary and lonely.