To elaborate a bit further on what
@IKOL said.
From the end of autumn of 2022 this is a war of attrition and the only "realistic" hope for Ukraine is that some significant "black swan event" happens in Russia. During these three years something akin to it happened twice - mobilization in autumn 2022 and Prigozhin's march in 2023, both times "the system" withstood. So as long as Russia can supply more troops to the front with money incentive than Ukraine with bussification there is no realistic hope for Ukraine to have a "strong negotiation position" or moving the front in a meaningful way, and with pre-war population 1/3 of Russia's there are not a lot of chances.