What are my goals? The same as Putin?
If yes: continue attrition fighting, but defensively. The goal is to stretch out ukraine losses past the point of western support. Keep offering varying "peace deals" that solidify the capture of oil and gas resources and access to the black sea. Claim the fighting will stop once the Russian territory is liberated (the captured oblasts). In the backroom arrange to let israel to start their middle east ground war, that will distract and drain support from Ukraine. Move the conscript soldiers to the Russian side of the north eastern border with Ukraine. Negotiate to get CIS volunteers as part of the defensive home guard.
If no: pull back troops to very defensive lines across rivers. Dig in. Don't try to take any territory. Negotiate for return of some territory in exchange for crimea and total access to black sea, settle for crimea and a promise not to join NATO for 20 years.
Focus on energy export pipelines to Europe and China, try to pivot industrial base to post solar future. China is the biggest long term competitor, find a niche that is critical to Chinese interests like oil (negiotate with kz to be sole supplier)