Your subdivision is way too high and you don't have enough geometry to work with the subdivision, your object is basically a cube. add more geometry and use "Extrude alone faces" to extrude in different directions at the same time to create the "head shape"

Here is a quick example

i added a mirror modifier just to show you half of the geometry

Your subdivision is way too high and you don't have enough geometry to work with the subdivision, your object is basically a cube. add more geometry and use "Extrude along faces" to extrude in different directions at the same time to create the "head shape"

Here is a quick example

i added a mirror modifier just to show you half of the geometry

Your subdivision is way to high and you don't have enough geometry to work with the subdivision, your object is basically a cube. add more geometry and use "Extrude alone faces" to extrude in different directions at the same time to create the "head shape"

Here is a quick example

i added a mirror modifier just to show you half of the geometry

Your subdivision is way too high and you don't have enough geometry to work with the subdivision, your object is basically a cube. add more geometry and use "Extrude alone faces" to extrude in different directions at the same time to create the "head shape"

Here is a quick example

i added a mirror modifier just to show you half of the geometry