Dear Benjamin, 

Try not to put the cart before the horse. Although we might first be attracted to the priesthood by a particular thing we see some priests doing (missions, diplomacy, youth work, running a parish, working with the poor...), that initial attraction always has to be matured, and can never be the sole reason for becoming a priest. There is of course a way to be a priest and work with kids, and the Vatican Diplomatic Service is made up of priests, but it would be a mistake to want to be a priest only to do those things because quite frankly there is no guarantee you will. You may join a missionary order and find yourself as a priest assigned to a seminary in your home country, for example, or you might join another group to work directly with the poor and be assigned to look for vocations.

Don't ask yourself if you want to be a priest, ask if God does.

Here are some other questions you could ask yourself: Has he placed the desire in my heart: Am I prepared to do whatever he wants?  Am I developing my character?  Have I mastered my emotions and humors? Am I still self-centered? Am I able to do what I know is right even when I'd prefer to do something else?  Do I pray?

These types of questions can help you see if you are maturing and preparing the ground to receive the seed that God may plant there. They will help you in your effort to take the center of reference off yourself and place it on God and the needs of the Church.

God bless,