Faith cannot be given or increased by human effort alone - but the grace of faith must have our co-operation! Especially in the “earlier” years of one’s walk with Christ - we must walk with Him. That means, for us today, we must listen to Him and learn from Him. How? Holy Scripture offers us His words, teachings, actions, commands - it is a living Word, able to work in those who make their home in His Truth.
As we learn Him - as we become “disciplized” by Him - we can begin to make acts of infused supernatural faith, and hope, and divine charity. This begins our active co-operation: to make decisions, choices, actions because of the gift of holy faith. As we look for opportunities to do this (and we must begin to do this), we begin to learn what it means to be a disciple of Christ, to follow Him, to do His will and not my own will.
As you do this, more and more, you will grow in peace and in confidence of being - remaining - in Him, safe from the fears and guilt that come in a life apart from Christ.