It's dumb I sound dumb BUT..

BUT.. IT's almost 1am and I can't sleep. A lot worse has happend and is happening. I love animals a lot. More than I do humans but I got this new dog and the person who gave it to me seemed super sad and now I have this dog and I don't even feel anything towards her(the dog). What's wrong with me? I want to give the dog back! I want to pay more attention to the animals I have now. UGH! it's so hard to explain what's going on. I've had the dog for only a few hours now and I don't know what to do.. Should I keep her or not? PLEASE help