Maybe Samson wasn’t muscle-bound at all. To the contrary, the Bible states that it was the power God that came upon him and enabled him to perform Herculean feats. But after Samson violated the last remaining distinctive (having his hair cut off), God’s Spirit left him and he became a wimp.
What distinguishes you as a Christian and sets you apart from a person who doesn’t know God? I hope prayer does.
Most of the “signs” of a believer in the Bible are inwardly, not outwardly. (Even circumcision was a a
very private sign!) The believer knew it and no one else. Carrying a Bible and wearing a Sunday hat don’t make you a Christian.
Only you know how much you are praying. Jesus prayed. His disciples prayed. They have left us this legacy. A significant portion of our day is to be dedicated to prayer. I shoot for at least an hour. A friend of mine gets three. (Praise God for her!)