In general a writer needs only one New Year’s resolution:
Sit down and write on a regular schedule.
Ah, were it that easy…
Here are a few others. A lot are for short story writers, since most of us start out that way before moving on to novels.
Finish X number of short stories for the year.
Send out at least one story a month. Or, keep stories in circulation.
Research Ralan or other market lists for new markets.
Find and join a critique group, whether that is online such as Critters or the Baen’s Bar one, or local.
Write X number of words a day. Jim Van Pelt, short story writer extraordinaire, says that if you write 250 words per day, at the end of the year you will have a novel. And everyone can write 250 words per day. Really. You totally can. Try it. You’ll see. This also leads into the next resolution:
Give myself permission to suck.
And the most important resolution of all:
Uninstall freecell from my computer.