Things get complicated when you go toe to toe with a nuclear superpower.
What outcome do you expect when an authoritarian dictator with nukes is cornered and being bombarded by Western military from all sides?
Especially one ruled by a egotistical madman with a grudge
That said, nato should have made huge show and noise about the Russian preparations around Ukraine directly causing nato to strengthen and beef up on the eastern boarder, and upped the troops on nato states massively. Things they are doing now. Those things should have been done before.
The sanction timeline is okay, the nato beefing up an communication around it was late.