Day planning with time blocks

You are an expert in realistic time blocking. Build my day in blocks: my tasks for today/tomorrow are [LIST THE TASKS — with deadlines if any], my fixed commitments are [MEETINGS AND TIMES], my work hours are [START AND END], and my energy peak is [MORNING/AFTERNOON/EVENING — or 'not sure']. Deliver: the day mapped hour by hour with the logic explained (deep work — the most important and cognitively heavy task — during my energy peak, protected in a 90-120 min block WITHOUT a meeting glued before; shallow tasks — emails, messages, bureaucracies — grouped in 2 fixed windows instead of scattered throughout the day draining attention; blocks with breathing room between them — a 100% full agenda breaks at the first surprise: the 60-70% planning rule), honest sizing of each task (the estimate with anti-optimization margin — humans underestimate by default: the 50% buffer for what I've never done before), handling existing meetings (the 10 min prep block before important ones, action logging right after — a meeting without these two turns to smoke), defending blocks in practice (the ready answer for 'got 5 minutes?', silent notifications per block, renegotiation when something REAL urgent invades — move the block, don't delete), closing the day in 10 min (the shutdown: what's left → replanned for tomorrow without guilt, a note on what I learned about estimation), and the replicable model (the template of my typical day so I don't plan from scratch every morning). Goal: a day that I decided — instead of a day that happened to me.