We are humans with good and bad bundled together. When a child is born in the world, the heart is pure and it takes in whatever it observes while growing. When we get matured, it is time to shape ourselves into a good person. This can be done by washing away unwanted thoughts/habits from us and cultivating new and positive habits and disciplines as a part of life. Such a change can happen with a well determined resolution. Every year, we can make our mind ready to accept good things that are difficult though and leave off the bad ones that are hard to leave though. Setting New Year Resolution is a good habit to renew ourselves year after year.
Here are some ideas which can be very helpful for every person:
Drink a lot of water
Exercise more
Lose weight
Get organized
Learn a new skill or hobby
Live life to the fullest
Save more money / spend less money
Quit smoking
Spend more time with family and friends
Travel more
Read more

All of these ideas, can be taken as a habits for a new coming year and it can make year easier and more bright!