1 min to solve your problem

Say two ways,

First, change the size directly on the canvas you made. If the scale is wrong, you have to control it yourself.

Second, create a new file. Of course, you have to build your own size, put this broken picture in and pull it to the size you want.

Location. Don't you know? For these two colors, the magic wand chooses yellow, and the new layer is sweet, a very Huang Heng yellow, in this picture.

Below the layer, there is another layer, sweet, hard, black, black.

Have you solved your problem?

That's it. Draw a p.