If we all stopped complying, things don't just 'get better' - you might not be wearing a mask or getting a jab, but there will be a fuckload of people ill.
Some of those people end up in hospital - a lot, if there are a lot ill. So the hospitals are full to the rafters (my cousin who's a nurse redeployed to a covid ward has lost 2 colleagues to suicide this year, because they are exhausted and scarred by watching people far too young to be dying die).
So then people like my uncle, who last weekend spent 3 hours waiting for an ambulance while he was having a heart attack, might die too.
And people like my dad, who has cancer and has had an operation pushed back to January because the hospital is cancelling anything not urgent (and it's not urgent now, but who knows how much it'll have grown by January?), might die too.
All the social workers looking after people like the tragic children you mentioned, how do you expect them to be on top of it when they're going off sick with Covid, or long covid, or getting ill because other things aren't being treated beause the medical system is flooded with covid? Or because they're off with stress and exhaustion, because their loved ones have died?
If by, you're sick of it, you mean you're sick of caring about anything except yourself, that's fine (if not selfish). But it won't magically fix anything if we all completely dropped all restrictions now. It would be absolute chaos, for a fair amount of time, with lots of excess deaths.
It's fucking shit. I know. But it's a pandemic, this is what happens, and we are in it for the long haul either way - to me, it's better to accept some mitigations to avoid unnecessary deaths of other people. If you feel differently, well I find that quite weird.
And I'm not sure why having booster vaccines bothers you so much, to be honest... would you not rather have it and be slightly safer, even though it doesn't stop you catching it altogether?
(Also, lol at the person saying 'we can't stop viruses, except smallpox' - yeah, you know how we did that? Vaccination.)