“…but to think soberly, according as God hath dealt to every man the measure of faith.”
Romans‬ ‭12‬:‭3‬

When you heard the gospel, the word of God that you heard came with the faith you required to accept the message and act on it:
“So then faith cometh by hearing, and hearing by the word of God.” Romans‬ ‭10‬:‭17‬
So every man among us- who is born again, as stated in the main verse, has been dealt a measure of faith.
If you are born again, you have faith. To believe that Jesus, whom you never met during his earth walk, who died years ago in a town in Israel, actually died for you- takes some faith! And you have it.
So recognize that you have faith and don’t identify as an unbeliever and say things like you don’t have faith for a situation, you do have faith, talk and act like it.