Clutch is squishy and it is difficult to shift, often grinding gears. Pls advise

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Approximately one week ago I began to notice I was grinding gears when shifting, which I attributed to inattention at first, but then I noticed i was experiencing gradually increasing difficulty in shifting and gear grinding. Today, sept. 24th, the clutch went soft and shifting difficulty has increased to the point that I believe it is unsafe to drive the car.