My Texas reptile expo pick ups

[Stewart_Reptiles]

So try and feed him today? He is my first hatchling

No

Set him up in a 6 quarts tub with DAMP paper towel until he sheds (when he does replace with aspen), once he sheds wait 48 hours and offer a live hopper mouse.

Hopefully it will all work out for you, buying an unstarted hatchling is never a good idea, even worse with no experience.