1988 Datsun 210 fluid clutch cylinder and clutch master cyl

i passed a car-shifting into another gear real fast-with the r.p.m.s kind of high-then when i went to go into another gear i had no cllutch-the pedal was hard.i had to turn the truck off ,to put it in gear and get out of the road.i maded a big mistake by changing the slave cylinder and the clutch cylinder without reading instructions-now i can:t get a pedal to come back,i bleeded and pumped pedal until i was tired and when i thought i had a little pedal-bleeded the slave cylinder and pump some more for hour:s and still nothing-what i:am i doing wrong--are is it the clutch gone.