Hi, Just thought I'd add my opinion too!
Just try to be yourself, don't try to hard to impress and don't be too nervous, she must like you to be going on a date!
What makes you think she's out of your leaque, my fella thought I was out of his league we've been together 6 years now and have a 3 yr old!
Just chill out fella whats the worst that can happen!