In 2016, I got 1 creative commission. I average about 30 a year now. Here's a thread on how:
Forums, Social Media, anything that's free, doesn't mentally drain you and Isn't Intrusive can help you get folk's attention.
Backpeddle and work that rice range for a while, and repeat.
When I decided to commission some Rambo artwork, there were 2 fanartists working the scene, so there were only 2 options.
Find your niché and people who share it.
I didn't start out as an editor. But people wanted me to do it more than they wanted me to write.
If you wanna do illustration, but you need money and people pay you for "your comic-book style"? Open up comic-specific commissions. Follow the demand.
How you present yourself online, and how you engage with your own work, matters as much as your art. When you, for example, call the artwork you got commissioned for "trash"? We believe you.
My Twitter is designed to make you think I'm more accomplished than I am. It's why most of you assume I'm at least in my late 20's.
Take advantage of that. Don't tell lies, but you'll be amazed how far propping up your minute accomplishments can get you.
Always get paid before you hand in the work. Never spend the fee until the transaction is complete. Assume you will someday need to refund a client while you're working, due to personal reasons.
Never take shame in backing out of a project when you need to.