Even if Putin is delusional and thinking he is winning the war, the death off all these general must be having some hampering to his war effort and one can only hope enough to end this conflict.
Unless the West does a lot more to help Ukraine then the country will end up crushed by Russia and their cities bombed to dust. It will only stop when Putin decides it will stop unless NATO start supplying the weaponry that Ukraine are asking for. Putin has the support of almost the whole Russian population and there is no sign at all of that changing, so there will be no rising of the people to force Putin out. It does not look as though the sanctions are going to have any significant impact any time soon, certainly not to the extent of affecting Putin's behaviour - if anything they are making him more determined to carry on. Putin has apparently staked a lot on achieving something he can call victory by 9th May. This is the date that Russia celebrates victory over Nazi Germany and is an important event in Russia as the Great Patriotic War is now seen in mythical terms there. Any victory in Ukraine will be viewed as another one for Mother Russia over Nazism. I assume this is partly why Putin keeps referring to the war against Ukriane as being one against Nazi elements there. I expect a significant increase in Russian activity and barbarity over the next month as they push to achieve Putin's objectives. The only way this might be averted is for the West to arm Ukraine with more aggressive weaponry than we have to date, although I can't see this happenng myself unfortunately.