'if i don't do it, there is nobody else to do it!'
if there is no one to do it, then should it be done in the first place?
He feeds the sparrow. He feeds the pigeon too. will He not feed you?
What if i cannot finish my essay/documentation/assignments in time?
What if i fail this subject, do poorly and disappoint my parents?
What if i have no time to do the work required?
so what.
What if God is your Creator, Master and your Father?
What if Christ has redeemed you with His blood and claims you as His possession?
What if the Holy Spirit lives in you to prompt you and comfort you with each step of the way?
What if all your work is taken from you this instant - would you find it stored in heaven or would it burn like stubble?
What if your wealth, health, friends, family are all taken away from you - would you cry out like Job "He giveth and He taketh away: blessed be the name of the Lord!"?
What if Christ comes NOW - would He be pleased with the work of your hands and the meditation of your heart?
choose your thinking hat before putting it on.