"I want to be a rock star!"
Personally, I've held to the philosophy I learned many years ago: Find a job you love and you'll never work a day in your life. I love what I do that provides me a living. And I'm good at it.
I love playing guitar, but I'm not good enough at it to make money. For me, once I started making money at it, it would become a hard, frustrating job. And then I'd hate it.
You might also be using too thick of a string gauge. As a beginner, you might consider switching to a lighter gauge. The sound will suffer (IMO), but your fingers will thank you until they toughen up enough to go heavier.