Where To Go From Here?

I'm struggling to figure out my career path. This December will be my third year working as an administrative assistant. Within those three years I have turned this position around from a mundane desk job to a position that has equal or potentially more responsibility than most "secretarial" work. During the first year, actually 2 months right after I received the position, I was involved in 2 car accidents and because I didn't have any vacation saved up, still had to work from home with a concussion and messed up back. I received a .49 cent raise that year or the next, I honestly can't remember. Fast forward to today and I'm still the least paid full time staff in our office ( I manage the budget so I would know). I was told I would receive a raise last month and never got it. I do have second job that keeps me afloat but just barely. Its another mundane job but its easy. I also work as a freelance writer, run my own blog, do videography work and a plethora of other creative things ( this is actually what I went to school for, Communications & Film). I'm an amazing storyteller and filmmaker. But I discourage myself from applying to those types of jobs because most of my experience has been from independent work, not major productions. I don't know, I'm just struggling. I have a creative soul. I want to get up and enjoy what I do. Even though I've made this position my own, I barely get paid enough to do anything besides come to work and go home. I'm honestly miserable. So what am I writing this post for? Words of advice, encouragement, how to change my career path, anything. I know I'm not the only one going through this, but I don't know if I can go through another year fulfilling someone else's dream. I don't want to. I'm young, in my twenties, and I want to be happy with what I do. Where do I go from here?