Searching around here and other coffee forums will give you lots of ideas to try. I plugged one of the holes with a toothpick and got used to the speed that way. The holes in mine are in a vertical plane and I found plugging the bottom one worked best. Probably the easiest way to learn is buy a few liters of milk and get someone who knows what they're doing to help you out for a few hours. Scott Rao's "water and a drop of detergent" technique is good too (see U-tube). Also, start with a medium-sized jug (around 500 mL) and make sure it is filled to the bottom of the spout. You can steam small amounts, but not in big jugs where there is only a shallow depth of milk. Good luck.