Welcome to the forum. Do you have a drops-based test kit? If not, then you should get yourself one. It will help to know what your chlorine levels are so that you can add the right amount of chlorine. The more frequently you test and keep the chlorine up at about 15 ppm, the faster your conversion will go. (An FAS-DPD test would be best for this. A regular OTO test usually only measures up to 5 ppm so you would have to dilute your pool sample with 2 parts distilled water and multiply the result by 3. It's not extremely accurate but it's better than nothing.) You will go through a lot of chlorine so read through the other threads here and you should have a good idea of what to expect. Some threads even have pictures so you can compare your progress.

Good luck

Peter