I feel similarly. As another comment mentioned yesterday some videos of the conflict are just surreal. Russian soldiers speaking collegiality with Ukrainians, multiple videos of abandoned equipment, poorly supplied troops, tanks with no infantry support. This is in contrast with absolutely awe inspiring communication from Ukrainian leadership. Comments like "The fight is here. I need ammo, not a ride," among them.
I can't imagine there is an "ace up his sleeve" at this point. If it was there from the start, why wait till now once so much of the world has already turned against you. From my (quite uninformed!) perspective it seems that plan A (Take Ukraine Quickly) may have already failed and the cost of a slow drawn out war is meeting much more international response and resistance from Ukraine than anticipated.