The japan situation is pretty specific to their economy rather than a sign that global inflation is about to spiral again, so i wouldn't panic just yet. That said, it's worth asking yourself: what parts of your budget have actually stayed expensive since inflation peaked? For most people it's rent or mortgage, groceries, and maybe energy - those tend to stick around even when general inflation cools. Focus your worry there instead of treating inflation as this looming threat everywhere.
One thing most people miss: lock in prices on things you buy regularly *now* if you suspect another bump is coming. sounds simple but if you've got freezer space or storage, buying shelf-stable stuff you know you'll use in the next few months while prices are stable beats scrambling later. also check if your income has actually kept pace with what you're paying out - sometimes the real issue isn't that inflation is coming back but that your salary didn't move much in 2025-2026.
What's your main concern - is it specific categories like food or energy spiking again, or more of a general "what if everything gets expensive" worry?