Can I check a Mezuzah myself?

Can I check a Mezuzah myself I’m just looking for breaks in the word right?

Unfortunately no.

There many things that would render a mezuzah unfit. Best to send to a reliable sofer.

-I’ll list just a few examples.
Obviously all the words have to be spelled correctly and in the correct order (Yup I have seen some disasters)

Coloring is off.

While not making the mezuzah invalid it is nevertheless telling if the crowns are missing.

The authenticity of the klaff

to name just a few…