We started potty training (24 month old) last weekend and it was going pretty well! He’d pee in the potty if we asked and even went a few times on his own. Today (day 7) he woke up and COMPLETELY refused to even sit on the potty. Held his pee for 4 hours before it all came pouring out. And did the same another 4 hours later..... we did the “oh crap” method and I am so disappointed with how today went. He was pacing, and crying, and whining, and letting tinkles out with every step but would NOT sit to pee..... I don’t want to give up after a week of hard work, but I feel so bad for him :( help?