Baby Shower

So my older sister has asked to host my baby shower this Spring.  I'm already overwhelmed with who I should invite and its 5 months away!  Initially I wanted the invites to be announcements/invitations so I could knock out 2 birds with one stone.  But then I feel silly sending an invite to a friend/family member who doesn't live in Ohio and will likely not be able to come.  I'm probably overthinking this.  Advice?