How to add my own writing to my fonts in Photoshop?

I am not a typographer, either, but I suspect that »simple« and »font creation« might not go together … 

https://alternativeto.net/software/fontcreator/?platform=mac

Creating a font normally requires a font software program. Once you create the font, you should. Be able to add it to Photoshop. 

https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://makeitcenter.adobe.com/en/blog/how-to-make-your-own-font.html&ved=2ahUKEwiR9bqd2dWAAxW8kWoFHbUtDgAQFnoECD0QBQ&usg=AOvVaw2tT6r6DvHjFV5JpHCmFQw1