Can I get some help flashing a rom to an Android device?

[AC Question]

Urgent: Help flashing rom to android device

First of all, my english is not that good so if you don understand something please ask me, I will try to explain it.
Here is my problem.
I got a new cellphone last week, an Huawei Honor 4x, with Android 4.4.2

As I never tried android (always sticked with ios) I rooted and messed up with some system files in >system>etc>audio and deleted a bunch of folders so now... I have no audio at all.
Spotify and music players simply wont play any audio. Cant hear ringtone nor speaker when talking. When I open chrome to play a vid, app crashes. Youtube app doesnt play videos.

I am a complete noob, but I understand I have to flash a new rom.

PLEASE! tell me STEP BY STEP what I have to do.

I tried all, there is no clockworkmod recovery compatible with my huawei honor 4x in RomManager so please, show me or make a guide on how to flash my Huawei.

thank you everyone!