At this time of year, the mind starts turning to resolutions for the next one. With that in mind, and inspired by something I came across recently, here's something to consider:
The goals you set must be things you can influence
You have no influence over the success levels of goals like "write a bestselling novel". However, you can write a novel, re-draft it, discover it's harder than you thought, take writing classes, write a few more books, write something you're finally happy with, find an editor, find an agent, and get published. You might not write a bestseller that way, but you'll have written a published novel, by doing things that you can control, through time and learning and hard work.
Don't set success-based end points as goals, set actions. Give yourself a chance to do things you can achieve.