Wash and dry your hair
Brush out all tangles
Decide how short you want the shortest layer to be
Part your hair where you normally wear it
Section your hair into top, sides, and back
Secure the sections you are not cutting
Take a small section from the top
Hold the section straight up between your fingers
Cut the ends to your desired length
Use that section as a guide for the next sections
Continue cutting small sections evenly
Release the next layer of hair
Pull each section up and cut slightly longer or shorter depending on the layered look you want
Check both sides for balance
Trim any uneven pieces
Blend the layers by point cutting the ends
Comb through your hair and inspect the shape
Make final small adjustments if needed