Answer:
you don't get corset trianing it is something you do therefore you should get a corset with steel boneing and wear it with something underneth your corset like a tank top or something and you want to have about 4 inch opening with your corset so that you can work it down to the desired size. try not to lace it too tightly because it can be very painful if you do. Also you might want to try and get a custum made corset so it will fit right. genrealy you want to get a under bust corset because it is more comfortable for breathing. If you do it should go from under the bust to your hips.