just to help with your fear,
ukraine is already getting ready to fight back
the invasion is draining russia's economy more than it already has, the country's economy is dropping lower than 50%, they might just run out of resources and be forced to turn back
Russia has already made itself a lot of enemies like G.B, Germany, france and tons more, if they chose to keep going there are already thousands of troops waiting, if they keep going they will most likely be steamrolled by the rest of the world