K.M.
When my son potty trained, he too had his own potty, but it was more of a toy for him. What I ended up doing, when I felt he was ready and able to tell me when he had to go..
I created a "Good Noodle" chart. I just bought a posterboard, and with marker, I drew up the 7 days in the week horizontally and vertically I drew down the dates of the week, as 1 row would be 5/7-5/13 so that way I knew his progress each day.
I bought little star stickers and each time he went potty in the toilet, I have him a star to put on his chart.
It motivated him. And at first, I chose 10 stars, if he reached 10 stars, we could go to the store and pick out a prize. It took awhile to reach those first 10 stars but he did it.
Once he got better and stars came quickly. I bumped up the amount of stars in order to get a prize....needless to say as he became a pro, I couldn't do the prize bribe...so a congratulations and a candy of his choice at the store...the transition was great for me.
*Oh for the stars, I cut up construction paper for play money, and put a star on each construction dollar, so each star dollar represented a star on his chart. I even gave it to him to hand the cashier at the store (to pay for his prize) I would explain to the cashier without him hearing me what his money was, and to please accept it...as I secretly swiped my credit card for payment...:)
This worked great for me, and I hope it is some help to you. Good Luck.