OKRs escaped the tech world for a good reason: the structure is surprisingly useful for personal goals too. One inspiring Objective ("get properly fit") paired with a few measurable Key Results ("squat 100kg", "run 5k under 25 min", "train 3x a week for 12 weeks") — so the fuzzy ambition gets a scoreboard that tells you plainly whether you're on track or kidding yourself.
The hard part is keeping the Key Results in view week to week, which is where most personal OKRs fade. This tool holds your objective and its measurable results together and tracks progress against them, so the scoreboard stays live. Just try it — set one objective and two or three key results, and check yourself against them, not against your good intentions.