leaky clutch repair

I have a 95 Isuzu Rodeo, 6 cyl, 2wd with a leaky clutch system. I have been refilling the fluid about once a week. This is the third replacement I have had in the past 4 years. Is it so difficult to repair these systems? Is it possible for me to fix the leak without replacing the set? The fluid leaks into the car, under the floor mat, so the leak must be in the connection. If anyone can tell me how to repair this leak without wasting any more money, I would appreciate it! Thanks