I finished my first Inktober challenge, just before NaNoWriMo, too. I'm a hobby writer still learning different techniques, but I decided to try my hand at doing art regularly. Writing's taught me forming a habit is pretty important.
The most important lesson I learned for Inktober is to keep it simple. The obligation of doing at every day is stressful. I dealt with balancing my writing while also contending with real life obligations and surprises. A few days ago, for example, during the hurricane, part of my house flooded and the stress occupied a lot of my time.
Unfortunately, I didn't always try the simplest of designs, but I learned early on to drop some of the more elaborate color schemes. The top thing is to finish and ink the sketch; it's not a finished product. I feel lucky to have completed thirty-one pieces, and I did by focusing on what I enjoy alongside sticking to black and white for the time being. Like NaNoWriMo, it's about having something to go back to and revise later.
Here are some of my favorite pieces I did: