I started to use SPEEDWRITING in college. Basically you omit vowels (except for initial ones), underline the last letter of the word for an "ing" ending and overline the last letter of the word for an "ed" ending. Use a dot in the middle of the line for "the". I've forgotten the rest of the language, but it was a 3(?) volume set. I only got past the first 2 or 3 lessons.
I think it would take me ages to learn a system like that.
Here is a sample of my cursive:
From reading your script, I realize that hard vowels are also written.
From Wikipedia: (this would have been the version I tried to use)
The second version of Speedwriting, designed by Alexander L. Sheff (July 21, 1898 – June 27, 1978) in the early 1950s, introduced some symbols that could not be produced on a typewriter such as arcs representing the letters 'm' and 'w'. This version modified a few of the abbreviating principles also. Changes implemented in the Sheff version include the following:[13]
vowels are included rather than omitted slightly more often; "cheap" is written as cep instead of cp
the word "the" is indicated by a dot rather than the letter t
period at the end of the sentence is written as a large diagonal stroke \ rather than a dot
past tense of a regular verb is indicated by a short horizontal stroke above the final letter of the root-word
the -ing suffix is indicated by a short horizontal mark under the last letter of the outline rather than the letter g