From what I've read, the UK stopped importing energy from Russia in July
And no more than 4% in February or March. Not one drop paid for in roubles either by either the state (or as in the case of Germany) its state licensed energy companies. Ever.
Now both Nordstreams have gone for good, there is an opportunity to cease all economic involvement in russia for the next few generations. There is still plenty of gas in the U.K. and Norwegian sectors of the North Sea and a (literally) glowing future for nuclear power.
And no, we didn't just do better, we did much better and took the lead among European countries in helping Ukraine. From day one. Certain countries even blocked other countries from helping, however this isn't the time to reflect on Germany's decline in status; it is the time to look at the ways in which the U.K. and U.S. (with the help of Poland and ideally Australia and Canada which both have huge and very well-established and politically/economically significant Ukrainian diaspora communities) will assist Ukraine in reconstructing itself into a thriving and fully independent ally.
The latest figures for damage is 350 billion dollars and several Ukrainian cities will be building sites for a long while to come. Doubtless they will choose the partner companies they work with carefully.
Edit
Back to Kaliningrad. Poland doesn't want it, Lithuania wouldn't want all the russians who live there, nobody else has any sort of claim to it, so why not give it to the Roma?