Taking a potty break

Tennille • 💚🦄Mom of a Unicorn Baby🦄💜 (Born 11/21/19) 🌌✨🌠🌠✨🌌 (During the Unicorn meteor shower)

My 3 and a 1/2 year old is Fully potty trained. However she refuses to take brakes when she knows she has to go. She would Hold it for hours if I would let her. It has become a daily struggle and fight to get Her to go to the bathroom And stop holding in her pee. We did recently have a new baby so I know that has a lot to do with it but , I'm at my wits end what do I do? I don't want her to get bladder infections as I used to do the same when I was younger so I know the repercussions.