How to convert png to font?

Question

Design

I have drawn a 2D sprite of letters. But I do not need to transfer them to a simple font without loss of quality or any distortion. Maybe I’m blind or not looking there, but I didn’t find something on the Internet, only for simple fonts. If you insert it into such programs, then they very smooth this font and it is no longer the same as it was intended. I drew the font in Photoshop.
Sprite itself:

Up close sprite