1996 GMC Jimmy How to change the Fuel Filter

Engine Mechanical problem
1996 GMC Jimmy 6 cyl Four Wheel Drive Automatic 200g miles

My Jimmy has been sitting since I started driving my other car. About 6 months later after starting it on a regular basis it won't start. I can put fuel in the carb and it starts then dies. I suspect the fuel pump. What do you think and how should I go about fixing it. Could it just be a plugged fuel filter? I have no mechanics experience.