With a long knife cut lines about 2" apart all the way down to the bottom of the pot. Then cut perpendicular lines 2" apart all the way to the bottom.
Let the curd rest for about 10 minutes.
Cut the curd into smaller pieces, just criss cross diagonally or between the old lines, to make them much smaller. Another option is to use a wire whisk. Use it in a straight up and down motion across the whole pot.
Let them heal for 10 minutes and then use a skimmer to cut across below the surface, going down in circular strokes to basically slice layers into the curd strands. This can also be done with a wire whisk held sideways. Your goal is to make 3/8" or pea-sized pieces.
Now heat the curds up to 102 degrees (108 for pasteurized) very slowly, by adding hot water to the sink or placing it on a burner with low heat. Using a double boiler method is safer to avoid overheating the curds at the bottom, if you have a large pot to set your cheese pot into.
Stir every few minutes while heating to keep the curd from sticking together and matting on the bottom and to keep the curds away from the direct heat of the burner below.
After 20-30 minutes of stirring (your temperature should be 102 (108) degrees now, test to see if they will stay matted together in a clump when compressed with your hand. They should stick together, but still be easy to separate with your fingers. If they don't stick, keep stirring till they do.
Take the pot off the heat and let the curds settle for 5 minutes while you prepare your draining station.