The Reason Behind Lizz Truss’ Resignation: UK's economic crisis Explained in simple words

VIDEO INTRODUCTION: The united kingdom is witnessing one of the worst economic crises in its history!! and the Russian gas cuts have triggered such a catastrophe for the UK economy that now inflation has touched a 40-year high at 9.9%, energy bills have shot up by almost 100% in spite of capping and most importantly, the pound has become one of the worst performing currencies, with its value dropping by 24 % against the dollar!! On top of that, the newly elected prime minister has come up with something called the Mini budget that further triggered a disaster such that, its now snowballing from an energy crisis, into a debt crisis, into a housing crisis, into a currency crisis and may be even a banking crisis!!
The question, is what is so terribly wrong about the Uk that its economy has turned into such a disaster?
How is this mini-budget triggering an economic catastrophe?
and most importantly, as students of business what are the study materials to help you understand this economic crisis in the united kingdom?