There are always 3 choices in life: give up, give in, or give it all you've got.
Starting today, "Give it all you've got to being a faithful Christian." God gave you His most precious gift – Christ, who died on the cross for us. That was surely not giving up or giving in, but an example for all of us to give it our all while here on earth.
For Christ died for sins once and for all, a good man on behalf of sinners, in order to lead you to God. He was put to death physically, but made alive spiritually.