If you haven’t read my post about Potty training a toddler  please do so. 🙂 

I would just to stress the importance of asking the toddler to pee at the bathroom when she’s diaperless. 
When they’re still learning, sometimes they’re confused with the urge to pee that most of the time it’s too late when they declare they want to pee. 

Ask them often and encourage them to pee even if they don’t think they want to but in reality they want to.