How to apply a custom font to the main menu

[ProYT]

I'm currently working on a doom wad, and I have some problems applying a custom font (which I downloaded from realm667) to the main menu.

I'm better at mapping than modding, so yeah, I often have problems like these.

I still don't know where I screwed up.
What I want to know, is how to create graphics out of a custom font
Help would be very appreciated

Screenshot:
https://i.postimg.cc/3JSF53t6/IMG-20210407-175823.jpg

[Talon1024]

You may not have to create menu graphics with your custom font. The font used in menu titles is called BIGUPPER, so try copying your BIGFONT and renaming the copy to BIGUPPER, and see if that fixes it.

[ProYT]

You may not have to create menu graphics with your custom font. The font used in menu titles is called BIGUPPER, so try copying your BIGFONT and renaming the copy to BIGUPPER, and see if that fixes it.

It doesn't fix it, I think it's better if I use paint to split all the letters and then build graphics out of it