Step 5.
Next with the text transform tool CTRL+T use perspective and distort and
try to make it look something like in my image:

Step 6.
Next go to the first shape you draw and add a layer style.
Gradient color and choose the colors you wish.

Step 7.
Take the rectangle tool again, choose a color and draw a shape like mine.

Step 8.
Use free transform CTRL+T and perspective and make it look like the image below:

Step 9.
Duplicate this same shape and flip it horizontally. Also using free transform you must reduce the width of this shape. Make it smaller.

Step 10
Make the color of this shape a little bit darker.

Step 11.
Group this 2 shapes now and duplicate them. Move the new group below the first one.

Step 12.
Then resize it using free transform tool.

Step 13.
Click on this shape to change the color and make it lighter.

Step 14.
Repeat steps from 11 to 13 as much as you need.