You can discern until you're blue in the face, but one day...you will just have to say "yes."
It may be the scariest thing you will ever do.
I think that many of us are hoping for a sort of certainty. I think it's fairly common to hesitate to get engaged, for example, because, "How do I know he/she is the right one? What if I'm wrong???" But, at some point, you just have to commit. You just have to trust.
My generation, is incredibly guilty of being afraid of commitment. We're not entirely to blame - I think that the generation before us passed on their legacy of being overly cautious. Society is just very distrustful of committing yourself to anything, because, "What if you're wrong???"
Everything worth having in life involves some kind of risk.
The truth is, no matter what your vocation, you will have a moment or many moments when you think, "What have I done? This was a mistake!" The moment will probably happen after your wedding, after your ordination, after you taken your solemn vows. You'll be stuck, and feel as if you have made a terrible mistake.
But that is where your vocation truly begins.
A vocation is made, not in the devout feelings, but in the decision to stick it out. Once you have committed, once there is "no way out," your vocation will truly begin to blossom. Doubt is part of our fallen condition - but choosing to trust in the midst of doubt is what will enable you to grow in your vocation. Having doubt after you've already committed doesn't mean you've committed to the wrong vocation - it means that you're growing deeper in that vocation.
The thing is that, there is a particular grace that comes with your "yes." It is a grace that you won't receive until after you have committed. In the case of ordination and marriage, that grace takes the form of a Sacrament, but that grace is certainly present in the religious life, as well. When you make a commitment, God honors that and floods you with grace. But that is a particular kind of grace that can only come once you have committed.
Andrew and I have often talked about this, in periods of growth in our marriage. "Can you imagine what this would be like if we believed in divorce? If we had an 'out'?" It would be so much more difficult to grow in our marriage if we had an escape door. Not having that escape door has freed us to not give up. Not having that escape door has made our love - for one another and for God - grow far deeper than it could otherwise.
Don't be afraid to say yes.
(And now enjoy this lovely parody with Pope Francis...)
Please continue to pray for vocations with us!
O God, Father of all Mercies,
Provider of a bountiful Harvest,
Provider of a bountiful Harvest,
send Your Graces upon those
You have called to gather the fruits of Your labor;
preserve and strengthen them in their lifelong service of you.
Open the hearts of Your children
that they may discern Your Holy Will;
inspire in them a love and desire to surrender themselves
to serving others in the name of Your son, Jesus Christ.
Teach all Your faithful to follow their respective paths in life
guided by Your Divine Word and Truth.
Through the intercession of the Most Blessed Virgin Mary,
all the Angels, and Saints, humbly hear our prayers
and grant Your Church's needs, through Christ, our Lord. Amen. (source)