Two weeks is nothing. It can take months to a year or more for your chin to really settle in and get used to you.
First, don't offer a dust bath every day. 2-3 times a week is plenty. Any more than that, and you can dry out his skin.
Second, chins are not cuddly, clutchy animals. You may never be able to hold him and cuddle with him. Each chin has their own unique personality, and he just may not be the type of chins that is going to want a lot of close contact with you. If you want to at least get him used to you, I would let him run in the bathroom (make sure it's clean, the toilet lid is closed, and there are no chemicals anywhere that he can get into) and sit on the floor and read a book. Just ignore him while he plays. Chins are really curious. Eventually he'll start coming over and bouncing off your body. You can also start talking to him and reading to him while he's in his cage, getting him used to your voice and your smell. Read a book out loud, the newspaper, a magazine, whatever you have handy.
What kind of treats are you offering? If they are from a pet store, they are probably junk, and if he's under 6 months of age, he shouldn't have treats anyway. I usually recommend bite sized, nonsugared shredded wheats, dried rosehips, organic rose buds, a pinch of old fashioned oats, the occasional cheerio, and lots of chin safe wood chews. Other than that, he really doesn't need treats, especially sugary ones.
What kind of toys did you get him? Again, if you got them from PetSmart, they are probably inappropriate for him anyway. Check the classifieds section here to see what kind of toys folks give their chins so you know what's safe. I would also consider getting him a wood house instead of the Igloo for the chew factor. A wood house will get gnawed on and will help keep his teeth worn down and at a healthy length.
You are most likely not going to "tame" your chin in the way that you are thinking. But most people can get their chins to tolerate them.