Wow, I'm...

all in, annoyed, battered beat, bedraggled, broken-down, burned out, bushed, collapsing, consumed, cooked, creaky, dead, debilitated, defunct, depleted, dilapidated, displeased, doddering, dog-tired, done, done for, done in, drained, drooping, droopy, empty, enervated, exasperated, exhausted, extinct, far-gone, fatigued, fed up, feeble, finished, flagging, flimsy, fragile, frail, haggard, incapacitated, infirm, inoperative, insubstantial, irked, irritated, jaded, kaput, lost, old, out of steam, overtaxed, overworked, packed up, petered out, played out, pooped, pooped out, prostrated, quavering, ramshackle, rickety, run-down, ruined, seedy, senile, shaking, shot, sick of, spent, stale, stressed out, sunk, tired, tottering, tuckered out, unhappy, unsound, used up, useless, washed-out, washed up, wasted, weak, weary, whacked, worn, worn down, worn out

Here's a hint: wearing new shoes on a day when the Schedule Nazi completely FUBARs the schedule causing you to stand for 3 straight hours...
IS
NOT
GOOD