I think you are doing a good job buying him his own potty. It is good that he likes to sit on it already. I have trained two boys to date and both of them are completely trained both for day and night. The youngest will turn 3 next month. As long as your boy is activitly telling you he needs to be changed, then he is ready to be potty trained. Each boy is different so you will probably have to find the best solution for him. I used those disposible training pants for my first son, but he knew they were modified diapers. Surprisingly, when I gave him real underwear he did go #1 in the potty almost immediately, #2 was a little move difficult. When he did a BM in his pants, I took him and the dirty pants to the potty and showed him where it belonged. It took some time and reassurement that it was ok to give BMs to the potty, but he was potty trained after awhile. He was the easy one. My second one was a little more difficult. I just gave him the big boy pants and set a timer and took him to potty every thirty to forty minutes. It took some time, but he understood and wanting to go potty. I know that is a lot of laundry, but both boys were so proud to wear real big boy underwear and so disappointed to mess them. That worked in my favor. Also when after a certain point; say 6:30 limit drinks before bedtime. When he wakes up, take him to potty right then, before bed, take him potty. With a lot of encouragement, he'll be potty trained before you know it.