Good post, and a great question.

I would recommend two things:

1.) Read Uniformity With God's Will by Saint Alphonsus de Ligouri.  This is a short little booklet that can be read over the course of a day or two.  I've read it about a dozen times and it gets better every time I read it.  You can download a PDF version online or order it off Amazon for a couple bucks.  I try to buy a couple dozen copies at a time to have on hand for friends and family.

Good post, and a great question.

I would recommend two things:

1.) Read Uniformity With God's Will by Saint Alphonsus de Ligouri.  This is a short little booklet that can be read over the course of a day or two.  I've read it about a dozen times and it gets better every time I read it.  You can download a PDF version online or order it off Amazon for a couple bucks.  I try to buy a couple dozen copies at a time to have on hand for friends and family.

2.) I would suggest a Nine Day Novena to Saint Joseph.  Below is the novena prayer I pray, and I insert my intention before the prayer...

O Saint Joseph, whose protection is so great, so strong, so prompt before the throne of God, I place in you all my interests and desires.

O Saint Joseph, assist me by your powerful intercession and obtain for me from your Divine Son all spiritual blessings through Jesus Christ, Our Lord; so that having engaged here below your heavenly power, I may offer my thanksgiving and homage to the most loving of Fathers.

O Saint Joseph, I never weary contemplating you and Jesus asleep in your arms; I dare not approach while He reposes near your heart. Press Him in my name and kiss His fine head for me, and ask Him to return the Kiss when I draw my dying breath. Amen

O Saint Joseph, hear my prayers and obtain my petitions. O Saint Joseph, pray for me.


 Here's a little quote from the book by Saint Alphonsus:

I hope this helps, and I'll keep you in my prayers.

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Well, finally I outstripped the new and improved time limit!
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While it might be possible God's answer to prayer could be a "nudge" in the direction of a certain gainful occupation for a Catholic, usually when we say "vocation" it refers to God's calling us into the religious life. I have heard several Novus Ordo priests attempt to equate the so-called vocation to married life with vocation to become a sister in a convent or a brother in a priory. This was not the case before Vat.II and consequently it must be a result of the ambiguity and unclean spirit of Vat.II.
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For example, Novus Ordo parishes now offer the so-called vocation of "Permanent Deacon" by which a Novus Ordo Catholic can get a salary or "stipend" for showing up and getting vested and conducting ceremonies that take the place of priests. The whole concept has the unmistakable aspect of Protestantism about it. Traditionally, in the Western Church a deacon is a man  on the way to becoming a priest, and it's a temporary designation as one of the steps along the way:  (minor orders) Porter, Lector, Exorcist, Acolyte; (major Orders) Subdeacon, Deacon, Priest. And a Deacon then who doesn't become a Priest is one who left the path for whatever reason, not because it was some kind of "career option." Furthermore, so-called Permanent Deacons I have known I have found to be conspicuously ignorant of important Church doctrines and generally far too materialistic in their outlook.

Certainly there are some gainful occupations that can be more beneficial to the Church and God's glory in the world, but in many cases a Catholic only has occasional opportunities to do or say something that is helpful that way. It seems to me that every occupation presents a kind of balancing act for the Catholic, in which he must always have in mind the avoidance of sin and the doing of morally upright acts.
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In our present time, worldiness and the activism of morally impure people have been encroaching on our daily lives to the degree that it is more and more challenging to pursue a career without having to suffer setbacks or loss of advancement because of our desire and intention to avoid sin and adhere to a Catholic moral code. Therefore the Catholic balancing act is getting more difficult as time goes on.

The husband should also be constantly occupied in some honest pursuit with a view to provide necessaries for the support of his family and to avoid idleness, the root of almost every vice.

1.) Read Uniformity With God's Will by Saint Alphonsus de Ligouri.

Yes, as long as it's honest. From the Catechism of the Council of Trent on matrimony:
The husband should also be constantly occupied in some honest pursuit with a view to provide necessaries for the support of his family and to avoid idleness, the root of almost every vice.