Transmission Nose-peice Breaking

[marks14]

Hey everybody, I have a s14 with a redtop sr20det. I installed it myself in august. About 3 weeks later the nosepeice broke on it leaving me stuck without a working clutch, i took it to a shop where a friend replaced the nosepeice for me with another used nosepeice. About 7 weeks ago i had the clutch replaced because of squeaking i thought was the throwout bearing. After the clutch was replaced i started hearing a chatter like sound coming from the transmission. About 3 weeks ago I went to a drift event beating up my clutch.The next time i drove it I started feeling a vibration in the clutch pedal. I replaced my master and my slave and nothing fixed the vibration. Yesterday I went to put the clutch in to shift and the clutch went to the floor. I pulled it back up and I limped back home. Today i went into the transmission myself to find that the nosepeice is broken again, and the center section in the new clutch disk feels a little bit loose. Ever since I have had the swap I have noticed while putting the clutch in I hear a faint grind/whirring sound, I don't know how to describe it. Can anyone give any input on why I'm breaking nosepeices?
Thanks