You can discover your Hogwarts House at the official quiz in the Wizarding World website. Other quizes may not be that accurate as the official one. If you doubt your Hogwarts House, make sure you take the official test again while answering honestly. Or you can think about what your house is by connecting it to your MBTI personality,

I think your opinion on what house you want to be in counts more than a random quiz. And I'm sure you're not dumb.

I think I'm a Hufflepuff, I'm not super brave like a Gryffindor, I was pretty surprised but I don't care no more

Hufflepuff is awesome :D

Oh, yes.

I'm a Slytherin-turned-Hufflepuff.