Replacing clutch release bearing on Sr20det tranny

Im gonna be doing it this week possibly, and I just need a little info on how im supposed to do it. Any help is welcome. When the car is idleing and im not touching the clutch it makes a loud noise, when the clutch is depressed it goes away completely. Also, when i depress the clutch and put it into 1st gear or reverse, it sticks and the car continues to move and make a loud noise at the same time.

***Shit, MOVE TO TECHNICAL OR HOW TO please *****

i have the same noise problem after install a Nismo clutch and flywheel. I though it’s normal. Because my friend’s 350z has that noise too.