One mistake I made when I started Gina's Dream is I did not calculate or pre-prepare for all the social media and blog setup needed for marketing, so I am trying to get on top it all for my next novel.
Tweeting takes time. Networking is still a fog because there are so many ways to approach it. In essence, you need to find websites and events where your target audience might go.
In the meantime, I have been working on Recipes from the Kitchen of a Frugal Non-Cook (RKFNC), a cookbook, and that, too, has been an adventure. I probably gained 10 pounds in the process while I retested some of my recipes. But, this cookbook gig got me acquainted with cookbook publishing. Many authors publish free cookbooks for their readership. RKFNC will be free, too.
One thing I do while I write is play music collections to keep me in the mood of the story. I make a collection for each novel. But, I did not make a collection for writing a cookbook, I just played my Saturday songs which include upbeat songs from the 60s - 80s.
I find even as I research or I work on my novel, I have to take a writing break and write something different like a book or movie review just to keep the juices flowing.