Small changes can and do make a difference in the numbers, as we have seen time and again all over the world, but they don't happen overnight. Things will get worse before they get better (natural to expect since it can take 3-14 days to get sick after being infected)it's not going to make any difference whatsoever. we are way beyond this kind of thing doing any good.
The never-ending lockdown of 2020 didn't help, but with small changes and fairly good compliance with the protocols life went back to "normalish" all the while still having high but manageable levels of infection. There were always hospital beds available for those that needed them.
It is undeniable that recently more people started to disregard the minimal protocols that did exist and things started going crazy - as someone who went out a lot at night over the past months can attest to - crowded nightclubs, packed restaurants, big asados and rowdy house parties where no one wears masks can hardly be a healthy idea in a pandemic like this... whatever protocols they started off with quickly wore off over the past month or so. Add to the mix people who get a little drunk or fumado in these settings and there is simply no stopping them from spreading the love around.
Most of those I know who got COVID partook in something like this in the week or two prior to infection or got it from someone who did.
What does not help at all however is an infectadura-style president who makes drastic off the hip decisions not even based on science or coordinated with his own government and governors while lacking any meaningful economic consideration. Just makes an even bigger mess for someone else to clean up.