If you look at all the recent statements from western leaders, there is a definite ramping up of the rhetoric. They are now being very clear about specific threats, but it is very much focused on grey threats, disruption of our infrastructure, knocking out satellites etc as opposed to a conventional war.
The threat of war is definitely closer than it has been for decades, but that doesn't mean it's inevitable - or that it will mean conventional or nuclear warfare.
Putin is dangerous but he's not entirely insane. In a sense, he has no need to use conventional weapons if he can, say, use misinformation to undermine democracy and cyberattacks to take out services. He won't want a war with NATO any more than we want war with Russia. But he will continue to test the water, which is why we're seeing a ramping up from NATO countries - they're effectively saying "try us and we'll be ready" which is a defensive deterrent. My best guess is that he will test boundaries by 'accidentally' landing a missile in a country neighbouring Ukraine (there's a school of thought he may have already done this in Poland).
Western leaders are also attempting to weaken ties in the Iran/ Russia/ China alliance by actively courting China. They depend on US, UK and Europe financially. See how Trump rolled out the red carpet for Xi. See how our own government is forging partnerships with Chinese industry.
Then there's Greenland. We hear nothing more about the US annexing it and suddenly it's back in the news again - and to everyone's surprise, a deal has been struck. The deal is not much more than was already in place of course, but this is Greenland/ Denmark and the US demonstrating that they understand the critical defensive positioning of Greenland. This was them staying "we're together in this - Greenland is not for the taking".
I think the point is that there is a lot of manoeuvring taking place that is definitely aimed at showing strength and unity with the precise aim of avoiding all out war.
And even if war did begin in a much more conventional sense, it would take one hell of an escalation for it to turn nuclear.
The best thing you can do is accept that war remains a possibility - one that is currently heightened. But that people who are far more intelligent and composed than us here on mn are doing everything they can to avoid it.
Take notice of the government's preparation advice - enough food, water and essentials for a few days of disruption (most likely to be a cyber attack or similar). We are still a long way off all out conflict and hey, who knows, maybe one of Putin's own will succeed in putting a bullet in his head before that happens. Russia's lack of progress in Ukraine is telling, as is their refrain from resorting to tactical nuclear weapons to win that war. They are not in a great place, and NATO is getting into better shape every day.
I hope this helps alleviate fears.