The problem with the sanctions is that so far they have not generated absolutely no problems for Russia, on the contrary, it is Europe that is the main affected.
I would not put my hands in the fire for a government as corrupt as the Ukrainian one (actually for any government), in fact most of the weapons given by NATO to that country were resold to countries at war in Africa or in the black market of armaments (see dark web).
Totally false. The Russian economy is projected to contract by about 10% due to the sanctions this year. Russia is dependent on Western tech companies in so many ways that them all pulling away at the same time cannot but have devastating effects in the form of a shortage of spare parts, software updates and other maintenance across the entire economy.
The weaponry given to Ukraine is already having a tangible effect on the Russian war effort. Just in the last couple of weeks, dozens of Russian artillery ammo depots have been blown up in the occupied areas. That would've been impossible without HIMARS and the GMLRS precision guided munitions provided by the US.
I should add how hundreds of Russian tanks and other vehicles were destroyed by Ukrainian infantry using anti-tank missiles like the Javelin or NLAW in March. It is very clear that the weapons provided by the West have done good.
The financial aid given by Western countries is keeping Ukraine financially afloat.
Are you sure you're not being paid by Russia to spread this propaganda? All you have said sounds quite familiar. Twitter is full of people from the Third World busy spreading Russian propaganda.