You buy it online. The down part is that you cant see the individual gecko. If you were older I'd say wire me some money, and I'll buy one in the store and ship it to you. Since there's more of a selection in the store.
But you're 15, and I'm sure your parents won't trust me. Lol.
My friend Jamie, the one the SS is for, lives in NJ too. She breeds SHTCTB's. I can see if she has any hatchling available for you. If you want one of those.
They're from the HISS bloodline, and texas tornado. So they're exquisite. But that also means a bit of a higher pricetag. Good thing, you both live in NJ so the shipping won't be much at all! From here (San Diego) to NJ costs $49