My mother believes that stuff, so I did not have glasses as kid and could not see much

It worked well enough that my myopia did not progress. However, I got bad astigmatism

Optometrists are really bad at measuring anything. Endmyopia probably works best for people who never had myopia, but the optometrists just measured some temporary accommodation as myopia. They always kept measuring my astigmatism as myopia for years. Only now that they have modern wavefront aberrometers, the device could tell them that they have measured the cylinder as 2 diopters too weak