clutch petal problem

[20 til 3]

so yesterday i had exhaust built for my car and my clutch petal adjusted.... driving home(regular driving) i put the clutch in to go from 3rd to 4th and the petal dropped to the floor and i barely had any tention that would allow me to shift. I pulled off the road and tried to lugg it home, but right after i lost all play in the petal and i couldnt engage it at all...

I want to fix it myself if its something small and not bother getting it towed to the shop again.... but what could the problem be?... clutch cylinder blow?

any help would be great