"You might belong in Hufflepuff, where dwell the just and loyal The patient Hufflepuffs are true and unafraid of toil."
Hufflepuff was founded by Helga Hufflepuff. She was willing to accept all students into Hogwarts, and so she formed the kindest, friendliest House. While many students from other Houses tend to treat Hufflepuffs as inferiors, they consist of many talented witches and wizards.
You look for the assistance others in times of need. But when it comes time to step up, you do so in order to protect the group. You believe that you have to go out of your way to prove yourself to the others.