Scared...

I'm really scared... My dad and I applied for a new apartment because rent is too high (my dad and I are roomies so I can take care of my half brothers while he's at work all day long) and I'm supposed to hear back from the landlady today. I'm really scared that we won't get the apartment because of me... Anyone over 18 has to be on the lease and have a credit score of 600+, but I'M 18. I just turned old enough to even get a credit card, and it takes 6 to 12 months to actually build up any credit. And I had to give the landlady my most recent pay stub, which was not impressive AT ALL because my job has been cutting hours DRASTICALLY. If we don't get the apartment, the boys are going to have to live with their grandma and my dad's going to have to live in his car in the winter... I don't know what to do... the boys are so excited for this new place that we might not even get...