I really need help with my clutch, im not at all sure what the problem is?

What is your question?

I was having problems with my clutch, when you stepped on the peddle it made a grinding noise and was very hard to get it in gear. So I bought a new clutch kit plus a new slave cylinder and replaced them. Everything worked great the first 2 times I drove the truck, but the next time I drove it I started having problems. When I would step on the clutch sometimes there would be a rubbing/ grinding noise and when I shifted into the next gear it would grind a little bit on the way in. So I brought it back in the garage and completely bled the clutch. The next time I drove it everything worked great, the peddle felt perfect, for the first 5 times I ran through the gears. Then the old problem started again, with the rubbing noise when I stepped on the peddle and a little grinding when I go into gear. I am not sure what it could be, the only thing I didn't replace was the pilot bearing and I don't know for sure if that is the problem. Im looking for any ideas I can get before I pull the transmission back out. please help!