To sum it up: reduce the amount of near-work you do (looking at your monitor, smartphone, books, etc) and, if you already have glasses, use glasses with a reduced prescription or no glasses for near-work.
With these rules I've managed to go from -5.5/-6 to -3.5/-3.75 in just these 9 months. And that's with me still spending 12h a day on my computer.
Pro tip: you can get very cheap (as little as $3) myopia glasses from aliexpress or a bit more expensive zenni optical. So there's really no big barrier to entry.
Side note: Lasik only cures the symptom of bad vision (just like glasses), but not the cause (elongated eyeball, which is what increases the likelihood of retinal detachment). If you don't change your habits after lasik, chances are you will need glasses again a couple years later as your eyeball further elongates, see: 35% are above 0.5 diopters again just 3 years after lasik https://bjo.bmj.com/content/103/4/565.abstract 58% are above 1 diopter again after 7 to 8 years. https://www.proquest.com/openview/722546068e4b0c9c1d3acba7e3...
I recommend you read more on endmyopia.org to learn about the scientific background and the eye biology behind it. But what I summed up above should easily get you started though and in just a couple of months you should notice improvements in your eyesight (you can test it at home by printing a Snellen eye chart).
Finally going to the eye doctor is no longer frustrating because my eyes are improving instead of getting worse year by year :)