It’s amazing how meeting one person can open up so many job opportunities. My former professor put me in contact with a lighting dealer who was in need a technician for an event. I happily worked the gig and what d’ya know, I get a call from them for another gig. :)
My advice to anyone getting into this industry:
Shake hands with everyone you can, be affable, and work your arse off. That will get you far.