I love this word from Charles Spurgeon—
“Some persons have the foolish notion that the only way in which they can live for God is by becoming ministers, missionaries, or Bible women. … Every lawful trade may be sanctified by the gospel to noblest ends. … Therefore be not discontented with your calling. Whatever God has made your position, or your work, abide in that, unless you are quite sure that He calls you to something else. Let your first care be to glorify God to the utmost of your power where you are.”
No matter what you are doing, if you’re doing it to glorify God, that is your ministry.
You don’t have to be a pastor/missionary to be a great minister!