Putin and the risks of nuclear attacks

For context, I live in France and unfortunately we will be the first to be hit. Since the announcement of authorizations for Western missiles to hit Russian territory, I am very, very worried, I am losing sleep and don't know where we are heading. leads, Putin announces that he does not want to use nuclear weapons, that he will arm countries with his missiles…

I don't understand why we risk everything to protect Ukraine, why escalate the risk of all-out nuclear war

I don't even know if we'll make it through this month

What are the chances that nuclear weapons will be used?