Not everything you find will be relevant. That can be frustrating, but so can getting points knocked off for not doing a bit more reading.
IMPORTANT:You should be able to easily prove that an article is related to your topic- heck, it should be self-evident! Read the abstract or the intro and conclusion of every article you consider before reading the whole thing.
Think about it! Remember- this is part of your final grade. If your topic is about the impact of mindfulness meditation on learning, an article on the impact of exercise on learning or an article on mindfulness in relationships isn't going to cut it!
Primary Sources in psychology are:
Clues for finding primary sources: