I'm sure this was all covered and reassured. I currently own a 3-4 month baby bearded dragon that I got perhaps more than a month ago. Even though I conducted a ton of research, I was very nervous to own a animal that I had no experience before. Thanks to my mother's friend who owned tons of beardies and the reptile shop person, I'm more informed and confident to raise my first Beardie. He's doing excellent.
To my experience with my beardie, he hardly ate the first week. Like really down to 10-15 crickets total during the week and sometimes he would even skip a day or two. But that is only because he's very stressed and trying to accustom his surroundings. Try not to take him out and handle them. I know it is tempting to show off to your family members and friends but to the beardie, even if you mean no harm, imagine yourself in the hands of godzillas and many more just staring at you. Just let him be, as long as he is eating a bit, he will be fine and will start eating more and more overtime. You won't need to force feed him at all.
Just carry on with the cleaning of his tank and he will become accustomed to you. If he does not eat for 3 or more days, that is when you might want to speak to your breeder, the shop person or expert right away and perhaps even take him to a vet for a check up.
Please make sure he is getting his UVA/UVB. I see that the Reptisun 10.0 is the best to use and I use it as well, works just fine. Make sure you get an appropriate basking light too.
Make sure he gets an appropriate night/day cycle. As long as the temperature is around 70F in your house at night, it is okay to turn off all your lights and no red warming bulb necessary. If you do use a red bulb, make sure you understand that beardies can see red light and may affect their sleep. Try to put him in a dark cave or log and if needed, cover the sleeping place with a dark cloth or towel.
Hope that helps. Don't panick!