I know that the war is difficult
I know that the Russian bear, while sucks in attacking is surprisingly doing well in defense; yet, time is ticking and with each paaaing second, it will become even harder for Ukraine to regain control of their Southern territory
Kherson needs to be recaptured ASAP
The Ukrainians are going to continue to give up land. It's the reality of this war. Despite Russia suffering heavy losses to this point, they still have plenty of manpower, armor and artillery, to continue their advances.
What's going to be important for Ukraine is that they continue to train up and equip the units they're holding in reserve and the units that will use western weaponry, as it's introduced into the theatre. As the Russians attempt to encircle the Ukrainian forces in the Donbas, it will provide the Ukrainians with unique opportunities to flank and and counter attack the Russians forces. Meeting them head on will only blunt the Russian advance and force a war of attrition, that Ukraine won't win.
Ukraine hates giving up territory, but they don't have any other choice at the moment. Like it, or not, it's going to take TIME to train Ukrainians on the use of the Western weapons that will challenge Russia's occupation of Ukrainian territory.
Anybody who thinks that Ukraine is going to stop Russia in its tracks, aren't watching what's happening in the 2nd stage of this war. The key will be whether, or not, the West provides them with enough to push back. In the meantime, they need to continue to weaken the Russian attacking force. That will make it easier to counter attack in the future. In particular, as drones and artillery flow into the country, the destruction of Russia's artillery assets will be paramount.