@HexanyIves
Don't fuss too much about getting the spacing perfect, though. It is very common during typesetting for writers/publishers and so forth to manually adjust spacing of a typeface by doing stuff like adding in extra very small spaces between letters.
Still, the better the spacing is to begin with (even for a personal typeface) the easier and more fun it will be to use.
...but you don't need to do the kerning all at once. You can start using a font and adjust later as needed.