Trying the impossible

So yes we are trying the impossible, I know I should have more faith that we can teach Liam to go to the potty, But so far it seems that nothing is working, we created a chart where he can put some stickers on if he goes to potty, we also bought him a super hero coloring book that he can only use if again he goes to potty, He loves super heroes!! I even went to the mall with him and asked him to pick his own underwear, it took forever for Liam to decide between cars and the super mini heroes,he kept on changing his mind, so cute he picked cars. Well so far he had an accident wearing his underwear.I hope that something will work :)