Everyone born has faith, it is given to you by God at birth.
Romans 12:3
3 For I say, through the grace given unto me, to every man that is among you, not to think of himself more highly than he ought to think; but to think soberly, according as God hath dealt to every man the measure of faith.
What is the measure of faith? How can you tell you actually have it?
Matthew 17:20
20 And Jesus said unto them, Because of your unbelief: for verily I say unto you, If ye have faith as a grain of mustard seed, ye shall say unto this mountain, Remove hence to yonder place; and it shall remove; and nothing shall be impossible unto you.
Luke 17:6
6 And the Lord said, If ye had faith as a grain of mustard seed, ye might say unto this sycamine tree, Be thou plucked up by the root, and be thou planted in the sea; and it should obey you.
If you have ever worked a job and your boss told you how much you would get paid and when payday was, then you showed up to work on that basis, you have more than a grain of a mustard seed of faith.
If you have ever created a debt, like rent, a mortgage, a car note an electric bill etc. Based on your paycheck, you have a mustard seed of faith, which is to say, you have faith and it came from God at the beginning of your life.
Faith is like a muscle, it takes more faith to believe for a cure of cancer than it does a common cold. The point is, the more you trust the Lord in your life, and the more you exercise your faith the more it grows the stronger it gets.