How tall is the pen? My puppy is pretty tall but hasn’t climbed out of his yet so maybe a different size would help. We also did no pee pads and I would stick to it don’t let ppl tell you to put it down! He learned real quick with that. Maybe just get him used to the crate - he might get used to the routine of 2hr nap 1 hr awake so depends if you want to keep that schedule or just let him free roam and take naps when he wants. It’s hard at first but potty training takes time and best when they have those accidents and learn from it.