Could someone tell me how to import fonts to Krita or i'm going crazy . Really i didn't find how to do this and i'm afraid that this option doesn't even exist which is bad because i need this.

You don't import fonts into Krita; you install fonts in the usual way for your operating system, and if they're not bitmap fonts or ancient Adobe Type 1 fonts, Krita will have those fonts available.

Oh god. Thanks