First off, why did you get a hatchling? doesn't sound like your really up for it...
When I got my first hatchling:
http://i170.photobucket.com/albums/u.../100_00321.jpg
I put her in a small tub:
http://i170.photobucket.com/albums/u.../100_00361.jpg
http://i170.photobucket.com/albums/u.../100_00341.jpg
http://i170.photobucket.com/albums/u.../100_00381.jpg
two small hides, one on cool side of tank, one on warm side of tank. VERY simple yet it gives them security. Put the tub in a non-traffic area and leave the poor thing alone for a few days. You bought it and have been bothering it since then. I bought mine the day after she shed at the pet shop. Put her in her tub, and left her alone for a solid week an offered her a hopper mouse, no go, she didnt want it. So i turned all the lights in the room off and sat in the dark for about 3-4 hrs before she took it. Your might take long since its been stressed since the day you got it. Take he hopper out, put it in a smaller tub, with two hides and a water bowl, get your temps right, your humidity up, and leave the poor thing along for 3-4 days, its not gonna starve in that time frame. Has it even shed yet?
Mine is now 82 grams, eats anything I throw in there and got too big for her little baby tub so I upgraded her to a nice 10G tank, no way would I have put her in there as a hatchling.
http://i170.photobucket.com/albums/u.../101_56741.jpg
http://i170.photobucket.com/albums/u.../101_56731.jpg
http://i170.photobucket.com/albums/u.../101_56771.jpg
Good Luck.