If you follow the news, you can see the atrocities committed by Russian soldiers in Ukraine. For me, it is personal. I am from Russia, and I have friends in Ukraine. I am terrified for them and their families, and I am deeply ashamed of what the Putin regime is doing using my country's name. I am also afraid that Ukraine is just the beginning. If we do not stop Putin now, he will continue to expand his war machine.
Now, the most effective way to stop Putin is to support Ukraine. There are many organizations, but I would recommend "Come Back Alive". They are a reputable organization, known for their transparency and impactful use of funds in directly combating Putin's forces.