When I'm not sure I always take out a piece of paper and jot down the kind of information/materials I'm going to need for a project.
for example: In this case you'll need
- A database
In the database you'll need the following tables and fields (or similar to)
table = Questions (this holds the question id, the question and the correct answer id)
fields = q_id, question, a_id
table = answers (this holds the answer id, the question id and the answer text)
fields = a_id, q_id, answer
Then I write down how I want the program to perform
I just keep working on it on paper until I have a solid idea of what I want and what I need to do to get it.