This time, the ruble's decline is attributable to trade sanctions and plunging export earnings rather than sanctions affecting the central bank and individual financial institutions."
https://www.dallasfed.org/research/economics/2023/1010#:~:text=This%20time%2C%20the%20ruble's%20decline,bank%20and%20individual%20financial%20institutions.

Putin’s created an economic crisis and left Moscow no easy way out

https://www.wilsoncenter.org/publication/putins-created-economic-crisis-and-left-moscow-no-easy-way-out

Infographic - Impact of sanctions on the Russian economy

https://www.consilium.europa.eu/en/infographics/impact-sanctions-russian-economy/

ridiculous ????

do let me know if you need more proof !