To make your life easier, wet the knife before cutting into it.
Look for the stem which divides the cabbage into half and cut it along that stem
Take one of those pretty halves and turn it upside down and cut it into half
Take one of those half and set it on its side.
Start by cutting it thin strips starting from the edge.
Repeat the steps for all cabbage "halves"
Place the cabbage in a sieve and place it under running water to clean it
Set it aside to drain the water
Take a big bowl and fill it halfway with room temperature water and 1/2 tsp salt
Stir the water before placing the washed cabbage strips into the bowl. Set aside for about 10 minutes
Drain the water and paper-towel dry it to soak up as much water
Add it to the pan to cook or bowl for a coleslaw recipe
Notes
When you are ready to cook the cabbage, drain the water and paper-towel dry it to soak up as much water as you can. Then add it to the pan for cooking.