What are you worth?
It sounds like a monetary question, I know, and eventually it will come to that, but right now, if you’re a new creator, you’re not worth a lot. You’re certainly not worth what you think you are, and your worth will actually fluctuate during your career.
Your worth, especially when you’re first starting out, will depend on two things. The first will be your ability to show up to do the work, and the second will be the amount of skill you have in doing the work. You cannot have the second without going through the first.
Showing up for work is the most important thing you can do. This will always affect your worth. Just like any other job, if you don’t show up, you don’t get paid. Pretty simple, but there are lots of creators who get gigs, and then fail to actually show up to do the work. Generally, this is called “flaking out”, and it happens a lot more often when you’re just getting started. The hell of it is that this is the time when you need to show up the most. This is where you establish yourself going forward.
Anecdote: I was hired to copy-edit Warmageddon Illustrated. I did it fast, I did it deep, and I did it well. The publisher was very impressed not only with what I caught (which was a lot), but because how fast I did the job. This got me more jobs copyediting Warmageddon Illustrated, which then turned to Warmageddon Quarterly. This was one of my very first editing jobs. Based on that work, I was able to move on to other things, finally moving into paid work.
My worth had gone up.
Once you consistently show up, you can ask for whatever your personal market will bear. Your personal market is your skill set and the level at which you’re able to work. If you have a small skill set/level, you can’t expect to command $100/pg for what you do. It just isn’t realistic. You grow your skills and raise your level, as long as you’re continuing to show up, then you can start raising your price, because you’ll be worth more.
It just takes time. However, you have to know what you’re presently worth first.