This faith will most surely build up over time as He adds to the tiny seed of His Spirit, bit-by-bit. Jesus used the metaphor of the mustard seed to convey how God would put a tiny piece of His Spirit in us and how that piece would grow over time.
In Matthew 13:31-32, we are told, “Another parable He put forth to them, saying: “The kingdom of heaven is like a mustard seed, which a man took and sowed in his field, which indeed is the least of all the seeds; but when it is grown it is greater than the herbs and becomes a tree, so that the birds of the air come and nest in its branches.”
God’s work in us over time can build up to ever greater possibilities of service and accomplishment just as the tiny mustard seed grows into the great, expansive tree. As He builds more of His Spirit into us every day, we become more capable instruments in His hand, molded to His Will, wanting what He wants. Furthermore, we grow to desire what He desires not because He has forced us, but because we have discovered over time, as He has given us spiritual “eyes to see,” that He loves us with an all-consuming love, that he wants what is best for us, and that His Way or Plan is always better than our way or plan. His plans are more transcendent and all-encompassing than our plans. His insight and wisdom are many, countless levels above our own human wisdom. Once we realize that His way is best, most of us will just wisely submit to God’s plan. But I recognize that there are times in which we let our pride, desires, emotions, or will get in the way and withhold from God control over certain areas of our life for whatever misguided reason. So He may have to convince us over time that we need to let go of whatever thing we are clinging to, maybe even pry our metaphorical fingers off of it. Thankfully, He is very patient and gentle with us, so long as we have good intent and are truly doing our best.
I pray that you will seek and find God’s will for your life.