There is some fancy stuff you can do that helps, but once you get above a certain income level you just have to pay.
lol, I weep for you, Austen
It might surprise people that authors have material expenses, but it is very, very easy to have them, particularly if one is operating one's business in a disciplined fashion. Authors have an image of being starving artists but lawyers and accountants who work for authors, to pick two examples, are not.
In addition you need to make quarterly payments for the estimated tax.
If you haven't done so yet. To fix your situation you can file an amended return. A CPA can do it for you... given your income, you should be able to afford it.
As your income grows so it does the likeliness of being audited.
https://www.irs.gov/businesses/small-businesses-self-employe...
Now that you have published your story, your real name and the income you obtained I strongly suggest to do it ASAP.