This video will show you how to drive grounding rods, run grounding wire to them and into the electrical panel, and how to bond the panel. Driving the grounding rods with a demo hammer makes quick work of sinking them into the ground without having to sledge them in. I use #4 AWG solid copper wire for the grounding wire.

Ground rod Demo hammer Bit: https://amzn.to/3e59XZS
Ground Rod Clamp: https://amzn.to/3e8JY3S