tl;dr
People are cheering for Ukraine, because they are fighting for the survival of our nation.
There is a rise of xenophobia from all sides (Russians, Ukrainians, Latvians).
The 25% inflation is insane. Price of bread has doubled, heating and electricity bills have tripled/quadrupled. In winter it will get even worse.
We'll probably get hit with a wave of emmigration and brain drain, which is sad, because recently we started having positive net migration for the first time of our history.
We are spending record ammounts of money on military, and introducing conscription, starting from January, and pushing the first voluntary batches into military education to prepare capable personnel asap.
We also established a military alliance with Lithuania and Estonia. Seems like we are cautious about NATO support if shit hits the fan, and will do all we can to be able to take care of ourselves. I'd be shitting myself too, if what the PM of Estonia said is true about NATO's defense plan, which is that NATO plans to do nothing with us and will focus on defending Poland instead.