This year, rather than doing something for yourself that you will give up or change, try this. Do something for Jesus. I mean, really give Him something that you want to change or seek a new approach at growing in your relationship with Him.
Perhaps try going once a week to Adoration or go to daily Mass, or perhaps go to confession more regularly (at least once a month), or spend an hour each day in prayer to be open and to be led by Him.
There are so many ways we can grow... but we die if we are not united to Him like a branch on the vine and allow Him to live deeper within our soul.
May this new year give you a new and fresh look at your relationship with God. May it be a real and deep one that lasts not just a year but for all eternity.