I just got a 6-week old pitbull pup yesterday and need some advice on how to take care of it. this is my first pet ever btw:

1) not eating. i bought a bag of blue buffalo pup food but she wont touch it. i also tried mixing it with cream of wheat but still wont touch it.
2) she cries every time i put her in the crate (36", but im using the training divider). i didnt sleep at all last night because of the noise. is there anything i can do stop her from crying? i dont want to let her lose in the apt. as i have a studio and i dont want to wake up to shit and piss all over.

all she does is sniff around and pee/poop on the floor when she is outside the crate. she doesnt even play with the chew toys but instead bites on my bike and tug on my sheets.

thanks guys.