Every since the end of WWII there has regularly been things happening that felt like we were steering towards WWIII. You have to learn to live your life, you have no idea in advance what will actually start WWIII. There are of course plenty of signs but you don’t know until after WWIII is over what were important. Even WWII when the first shots were fired did not have to become a world war, things just escalated in ways that you couldn’t be sure at the time they would.
Don’t real the above as you shouldn’t work for peace, or that you shouldn’t prepare for WWIII. You should be doing both at the same time. The cost of peace sometimes higher than the costs of war - and war is expensive! (peace can sometimes only be had at the cost of becoming a slave - I’d rather my kids die in war than become slaves)
How old are you? The Cuban missile crisis was far worse than this - but 1962 was 62 years ago - not many people alive are old enough to remember how bad it was then. For most of us that is just something for history while the things happening today are real to us.
Odds are this will pass, but just like in 1962 nobody knew for sure we were not on the brink of war, I cannot tell you for sure.