Actually, the future is never certain, regardless of how many graduate schools one gets into, or how much salary a future job pays. Despite one's detailed plans for tomorrow, life always manages to surprise us. Moreover, life after college is a particularly confusing time. As Christians, however, we can put our trust in the Lord. He will lead us if we ask Him He will not abandon us.
Life is more than food, and the body more than clothes.
In fact, this bewildering time in life can actually be an opportunity to demonstrate the level of our faith. Sometimes, God wants us to seek Him persistently and patiently. Yet, praying for guidance and direction does not ensure that the answers will immediately materialize. Christians have to work hard, just like everyone else. Prayer does not always abolish the struggles of the the Christian, since everyone living in this world learns through tribulations.