Got a problem in your mind and searching for the answers... my friend, you have all the answers in you. Sit in a quite place and think of your past life and the experience you have come across. Some where or the other you might have come across the same kind of problem.
Remember what kind of solution was provided and who provided. Try to attack the current problem in the same way.
Get back your confidence, he is your only friend, rest are all just for material and money. Your confidence is your best friend who can guide you anywhere you are, even in an examination hall.
Crucial and difficult times comes to everybody, you challenge is how you win it. No matter if you fail to do it. If you do it, then you boost your confidence or if you lose it then it will serve as your experience. So never fear about an problem, your fear is the exact problem.