I've gotta thank you guys for helpin' me out.
Little did I know however, my mom was also helping me look for a teacher.
So, it turns out there's a guy who lives five minutes away from my house that teaches, and I had my first lesson today.
He's really cool from what I can tell. He's knowledgeable in many stringed instruments, and owns a few guitars, banjos, mandolins, a violin, and now his own double bass. He apparently has another student interested in upright bass, and because my twin and I are studying bass from him, he said "it's an excuse to buy me a double bass."

He has played and owned basses (both bass guitar and double bass) but has sold them throughout the years.
Today we just assessed where we were (I play bass guitar at school, so I already know some theory) and he taught us a walking bass line for us to practice. It's really fun.
But best of all, he's going to take us up to Riedstra's on Friday to get our very first double bass. He's also going to let us try out both styles of bow as well. I can't wait!