seeing a demonic face
You should speak to a spiritual leader first and then determine if this was a true evil experience or if you might be under a lot of stress. Being very tired can cause you to see things that are not real, but that does not mean you did not have an experience.
If you would like some annonymity, this is a good site for asking questions of this nature: Jesus 2020
Also, one good passage that might help you which is from James 4:7:
So humble yourselves before God. Resist the devil, and he will flee from you.
Good luck to you and keep the faith!
