Write a Career Closing Reflection and Next Chapter Vision

Act as a life and career design coach. I am at a meaningful transition point — closing one chapter of my career and beginning another. The chapter I am leaving behind was defined by [PREVIOUS_CHAPTER]. The next chapter I want to write is about [NEXT_CHAPTER_VISION]. Write two short pieces: first, a 100-word 'closing acknowledgement' that honours what I built and learned in the previous chapter with no regrets. Second, a 100-word 'opening declaration' for the next chapter that is bold, specific, and energising. Both should feel personal and true.