Moody blues!

Mind in total shock... Oh! dear, writer's block! For nought I've to say; At wits end, today! Once so prolific... Output terrific! Those creative days, A dim, distant haze! My brains I do wrack... For spark I so lack! A pre-year end lull? So predictably dull! As seasons change, So minds do derange! Ahead yuletide splurge... Spend more, the shops urge! Shortages the cry... Food prices sky high! An early tip-off, Forthcoming rip-off! That gripe off my chest, My case I will rest! The summer's now here... A time of good cheer?