today is huge!!!

We are going to Navy Fed to apply for our 1st ever loan!!! I am super nervous! After doing some research we are hoping to get a loan  @ 11.75 % interest, we have up to 60 months to pay it back ( though it won't take us half that long it was nice to have the comfort) I am border line freakin out so if anyone has any advice they would like to share that would be so awesome!