Our faith is important to God. It is so important that He will challenge, exercise, and stretch our faith "muscle" through service. While we have all wrestled with feeling unprepared & not skilled enough to serve, God grows our faith in those moments when we are not fully prepared or able.
In Matthew 14, Jesus challenges His disciples to do things they could not do on their own, so that they would have to place their trust in Him more. He challenges them (and us) to do what they can do and trust God to do what only He can do.
Where is God nudging you to serve? Are you willing to be uncomfortable & possibly unable to do alone what He is asking you to do?