I’ve shaved my balls for decades at this point. Take a good hot shower for at least 10 minutes, or even better soak in a hot tub for 30-60 minutes. This softens the hair. Shampoo is the best shaving cream as it doesn’t dull the razor blades as much as actual shaving cream. I pull the skin tight and go one pass with the grain, and one pass against. As others have said, that is delicate skin, and it cuts easily, so be careful. Personally I have yet to get better results with any of the various razors I’ve tried, so I just stick with my Mach 3