Need some advice on potty training two toddlers

we also sang and danced after she went potty and she loved it

for my daughter we did a prize box i got a shoe box made it all cute and girly and put a bunch of lil dollar store toys and whenever she went potty she can get a prize

ok with my son i first started at one that didnt work so we started again at 2 it was hard but he got the hang of it he was fully trained when he 3 ... lots of hard work

Feel like giving up sometimes

I've tryed everything with my son, I'm about to skip him and start focusing on my baby girl

Both, my biological son and my foster daughter .my son is so strong willed and is giving me such a hard time. And my foster daughter is excited to start but I don't think she's ready yet.they are both 2

boy or girl