Few things I want to mention:
If you were sick for a couple of days and felt better - you may not have covid but rather a case of sniffles (cold). Even if you "lost taste", that doesn't necessarily mean you had COVID, as many complain of losing taste/appetite when sick. Even if your test said positive for COVID, there's always the chance for a false positive test results. Still, I hope you did have a case of very mild covid and had a swift recovery as that means, in general, covid isn't a large danger to you. Hopefully you wore masks during that time to minimize the spread.
India's statistics are not reliable and should always be analyzed for accuracy and precision (and for those that don't know, those two are different things, google them) prior to using them for data.
Sweden, if I recall correctly, publicly announced their approach had failed and reverted to a similar model as everyone else: distancing, masks, and minimizing nonvital businesses.
An
oversimplified image of herd immunity and population vaccination percentages:
The percentages are not hard values - many other factors impacts the virulence of a pathogen, effectiveness of the vaccine, etc. so each disease will have its own varying patterns. But the overall pattern is similar.
Even if the vaccine is not from the exact strain of the wild pathogen, they are still useful in providing your immune system a head start to responding against it. So even if a flu shot doesn't have the exact strain that is in the wild, you will receive a small bit of protection against the wild strain with a faster immune response than a person that did not get the vaccine (normalizing for any health differences). I've heard multiple health professionals claim that flu vaccines aren't useful because of the wild strain not being in the flu shot, this is incorrect statement and is one factor contributing to poor vaccination rates. Just like high school, there are plenty of people that manage to just get by school and get licensed. And for some, infective pathogens isn't their forte. Healthcare workers are people too, and can make errors or get caught up with the "hype/fear".