So leaving aside the fact that tools for converting your handwriting into a font already exist. The way the Latin alphabet is typeset is really inimical to this

So leaving aside the fact that tools for converting your handwriting into a font already exist. The way the Latin alphabet is typeset is really inimical to this. Arabic is a much better match, because the font shaping engines understand that letters have different forms in different parts of a word, and that the strokes need to align. Maybe you could do this with learning pairs and glyph substitutions, but I doubt many people are going to have the patience