A nice article on how to better balance your backlog by using backlog quadrants can be found here: https://robertvanlieshout.medium.com/how-to-better-balance-your-backlog-56ef8d099bcd
As well-intentioned as teams are, it’s really hard to finish absolutely everything by the end of a sprint. A team may have grabbed eight product backlog items (typically user stories), but only finish six or seven of them. The other items are often close to done, but this isn’t horseshoes so close doesn’t count.
But what about the estimates on those unfinished product backlog items? Should they be re-estimated? And should the team get partial credit for the work they did complete? Let’s consider each of these questions, starting with partial credit.
A nice overview of warm-ups and energizers can be found here: https://www.mural.co/blog/online-warm-ups-energizers
User-story maps help Agile teams define what to build and maintain visibility for how it all fits together. They enable user-centered conversations, collaboration, and feature prioritization to align and guide iterative product development.