It looks like you’re off to a good start!
For one thing:
"I can’t post or send links through Fiverr, though if you’d like a sample of my poem or an example of how I edit them, I’d be happy to send some. "
What you can do, is take a screenshot of your work, and include it in the gig photos.
Also, I would recommend not mentioning anything about work for school, since that is not allowed here.
One thing that has gotten me a loyal repeat customer is promoting my gig here in the forum. There is a special category specifically for promoting your gig. I wouldn’t do it very often, but its there to use, and actually I don’t see any rules about how often you can post there. The second time I used it I got nothing, but hey! every bit helps.
I’m assuming you’ve kept your eye on the buyers requests. I’ve only ever tried that once, but that’s what everyone is told to do when you’re just getting started.
I would also try to figure out other gigs you can offer as well. It’s strange, because I’ve noticed over the past 3 months since I started here certain gigs get action, and then others do, and then a gig I didn’t expect was going anywhere got two orders in the same day!
I also am currently in the habit of working many more hours than I probably should get paid for, but 13 ratings is a good start, and I consider all of that work a proper investment both in fiverr, and myself.