New clutch not working at all!

[His Dudeness]

If you fix your own stuff you have to be prepared for it to go wrong the odd time when you're learning. Your mistake caused you hassle but it was only a small mistake so don't let it put you off. As far as I know the ball bearing can only fall out on the sprocket side of the engine not on the clutch side so I don't think it could have fallen into the sump.