To see if its the fuel filter and not the fuel pump. Try this but, you'll need a friend or someone to help you.
Open the gas cap. Place your ear near the fuel inlet nozzle. Have your friend to turn the key to the "Start" position, leaving it in that position for five seconds. The fuel pump will prime itself, and the sound of the pump can be heard. Verifying that the fuel pump is running will help to isolate the filter. Have your friend turn off the ignition.
Crawl under the vehicle and locate the fuel filter. Follow the fuel lines to the filter and remove the inlet line. Most filters have a quick-disconnect fitting that can be pulled off the filter easily. Hopfully your moms car will too. Place a small drain pan under the line to catch any excess fuel.
Instruct your friend to turn the key to the "Start" position again. Observe if any fuel flows out of the fuel line. If there is a steady flow of fuel, then the fuel pump is adequately isolated, and troubleshooting the filter can proceed. Install the inlet line onto the filter. Push on it until it locks into place. Have your friend turn off the ignition.
Remove the outlet line and hold the drain pan under the exposed pipe. Tell your partner to turn the key to the "Start" position. Fuel will flow out of the filter if the filter is not clogged. If no fuel flows out, then this indicates a clogged filter.
Reinstall the fuel line back onto the filter. Tell your friend to turn off the ignition.