i dont mean to be rude, but dont panic about the clutch too mate, one thing at a time.
I reckon its just a design fault with the clutch pedal itself, My gears disengage when fully pressed, so its not dragging the clutch, so that cant have done the damage, also you would smell it if it was dragging thus knackering it.
The clips are 23p from a dealer. I have a spare clutch cylinder i brought to replace mine with, never done it as im convinced theres nothing wrong, got used to the pedal sitting slightly lower than the others, i used a new clip, made no difference, as i said i think its something to do with where the clip sits, as to whether it comes back up all by itself, i also changed the pedal spring made feck all difference.
Or the other option coudl be, the dealer was right about mine all along, and the pedal box is cracked and somehow the bracket for the clutch pedal (bar) has shifted thus giving me incorrect pedal feelings.
Its interesting to see the amountb of stress the clutch pedal takes, go into your engine bay, look near the brake fluid resovior, below to the right with two bolts, get a mate to work the pedal and see how much the whole bulkhead bends, that has to be part of it surely.
your worrying like i used to, i've kind of got used to it, and its been over a year now