I'm trying to create a brush the makes little squares in p-shop. I tried several times to do the whole thing in p-shop but whenever I change the size of my brush after the fact, the edges of my square are all pixelated. I've even tried creating a vector object in illustrator and copy pasting it in p-shop to create my brush. Is there a way to create the kind of brush I'm attempting and still have crisp edges on my squares? ThanksThis is the shape I'm trying to create

I'm trying to create a brush the makes little squares in p-shop. I tried several times to do the whole thing in p-shop but whenever I change the size of my brush after the fact, the edges of my square are all pixelated. I've even tried creating a vector object in illustrator and copy pasting it in p-shop to create my brush. Is there a way to create the kind of brush I'm attempting and still have crisp edges on my squares?

This is the shape I'm trying to create

For further clarity, this is the type of brush effect I'm going for, but as you can see, it's not clean.