How do I make the contrast brighter

See if this will work: Choose View > Show Adjust Image.

Use the controls to make adjustments.

Brightness:

Changes the amount of white in the image. Dragging to the right increases the white in the image, making it appear brighter.

Contrast:

Changes the difference between the light and dark areas of the image. If you increase contrast, the light parts get lighter and the darks get darker. If you decrease contrast, the difference between light and dark decreases. Dragging to the right makes the edges between light and dark areas more stark, and can make a photo appear more like an illustration.

Saturation:

Changes the richness of color in the image. Dragging to the right makes the colors richer or more vibrant.