As Brian Tracy rightly said
"there are no unrealistic goals, just unrealistic deadlines"
as 2017 comes to an end am sure you have 'resolutions' you made at the beginning of the year which you know would have been of great value to you and those around you but you're yet to scratch, let alone achieve..
Lol.
Relax we all have them.

Probably, the reason you didn't achieve is the time you attached to it (if you even did) is unrealistic.
You can't for example kick a habit you've had for 10 years in a month - its just not possible.
Does that mean you settle and say "it cannot be done"? NO!!
What you do is reevaluate your goal, break it into steps and stages and one step at a time, you'll see yourself scale the highest mountain (figuratively of course, except u want to climb Everest in 2018).
My point is you can have all you need for all you want to achieve....
Learn that skill, read that book, commit to that investment,
write that manuscript,
make that mix tape....
Whatever it is JUST DO IT....
2018 go make sense!!!!