Ok, First of all, take a deep breath. . . .Potty training is difficult, but it isn't the end of the world. Boys just take a little longer than girls becuase frankly, they dont want to stop playing long enough to go. Also, every child is different! Something that works for one child may not work for another, but no matter what, NO ONE should ever make you feel bad about the choices that you have made. Every mom is as awesome as their child, and is as different from other mothers as their child is from other children. Dont ever let some one make you feel bad for not being the mom that they are, becuse you are a great mom!
I agree with one of the other posts also that your daycare should be an inportant part in training your son. If they are the care givers durring the day and you at night, then yall should be working as a team.
A few of the things that we tried was that my husband took my son to the bathroom with him and let him watch how to do it (even sitting down) and then let him do it too. Once they were done and washed their hands, (and only IF my little boy actualy went), then they got a treat. (We tried the potty training sticker chart, and my son did not care about that at all, but a mini oreo or a tootsie roll he loved! AND, he ONLY got those treats for going on the potty, he didnt get them any other time at all, so it made them more special) When learning to stand up, we tossed fruit loops, or the colored "gold fish" crackers into the potty for him to aim at. It worked better than just cherioes becuase of the bright colors and they are bigger.
We also didnt have any luck with the pull ups, it was too much like a diaper for him, so we went to the store and had him pick out the big boy underwear that he wanted and let him wear those instead. Becuase he instantly felt when he was wet, we only had 3 or 4 accidents and it was done. (oh, also, once he was doing really good on his training, when the "snack jar" was empty, we just told him that it was all gone and he was such a big boy that he didnt need treats any more, and he seemed really ok with that and never missed them.)
I hope this helps! Good Luck!!