Meanwhile,
Some things to keep in mind:
The best way to showcase your top-line weapons, troops, and tactics is to let the bad guys see how you use them in action.
Meaning, its easy to figure out a defense when these systems are hitting your front lines. Its even better to capture some of them for some reverse engineering.
Making Ukraine a full member of NATO
right now means that Article V has been invoked and central and eastern Europe are now involved in WWIII.
This is probably not a big deal
if you live somewhere that isn't close to central or eastern Europe.
If NATO does nothing outside of the aid they already provide, Russia still gets weaker as time goes by. This isn't fair to Ukraine but it does mean that NATO winds up in a win-win situation by essentially doing nothing besides keeping the supply trains rolling.
Russia may win some tactical battles
but they lost any hope of a strategic victory the minute after they invaded. There is no kind of a storybook ending where Russia regains any trust from Europe. Even if they show footage of Putin hanging from a lamp post in Red Square and everyone in Russia sincerely apologizes to the rest of the world on CNN, the jig is up (at least for the next 50 years).
If you live in Russia and you miss all of the gun battles in the streets and play grounds and the assignations in your apartment building from back in the mid-90's, just be patient. They'll be back in full force over the next couple of years.