Sorry, what didn't work? The castor oil?? That would be very bad news--the stuff is powerful! You do know it takes 5-6 hours before it comes on through?
Did you see my post about fasting basics, outlining the colon cleansing protocols? A strong cup of herbal lax tea at night, and again in the morning, is another good idea. I would not do a swf until things start moving.
Meanwhile, I would highly recommend you consider a plain water enema to clear the way.
You MUST clear that colon! Congestion during fasting can set you up for a nasty detox crisis.