How to fix my leaking power steering

You will have to check all of the lines.

Clean up any fluid mess, and then you'll be able to see more clearly where the leak is coming from.

The power steering pump has a low-pressure side, and a high-pressure side. Your leak is more likely to be on the high-pressure side. Check the high-pressure lines, and also the pump, itself.

If the leak is from the pump, then it will have to be replaced. This is not a hard job.

If the lines need to be replaced, that may be difficult, or maybe not, depending on how the lines snake through the car. I don't know your particular car.

If you replace the pump, you will probably be able to get a credit for returning the dud. They will remanufacture using your returned core.