You may still have air in the system. Bleeding it is not hard to do and should
be a first step. Many have found that bleeding and/or a new slave  or master
cylinder have made their clutch problems go away.

As for the green drops, If its not alien blood then some non-metalic leak sealer
may seal up the engine. I have used Prestone super sealer, now they have a New
formula with KEVLAR of all things. I suppose the new formula stops leaks and
makes your motor bullet proof too.