Our son is 3 and a half and he is just now fully potty trained. I was beginning to think he would never be potty trained, so I feel your pain! I prayed hard and asked God to take over as we weren't having any luck. Then, I tried something that I had heard of and thought was ridiculous and kinda gross. I left his pants off at home and just let him wear a shirt. A longer tee shirt is nice, so you aren't constantly looking at his rear end. It worked, he didn't want to go on the floor and he never did, I was amazed. I also tried to stay close to home as much as possible for awhile, as when I took him out he would wet his clothes or his pullup. I had to stop using pullups altogether, I really think they were part of the problem. I knew when he had to poop, because he would beg for a pullup, but he didn't get it. When we'd go out, I'd tell him things like if you keep your clothes dry, we'll go to the library or look at the toys at Walmart, etc. But, if he wet his clothes, he knew he would have to go home. He learned real quickly at that point to stay dry. It wasn't easy, but it worked. He is our youngest child, much younger than our other two and I had no problem with them, but I didn't use pullups with them. He is an extremely smart little fellow, so intelligence is not a factor, children are just different. I hope things go well for you, I know it's really difficult to go through when they don't just get it right off the bat, like some do.