For me to keep it off was the challenge. I Started by working out how much I needed to eat for maintenance, through calculators and counting my calories for a couple of weeks.
Then I just brought a small deficit of a couple hundred cals, and increased exercise; making sure to go for a walk each day, started lifting weights at the gym.
Now im halfway to my weight goal. But it was all about setting the habits and keeping them going, turning down extra cake in the office or having a smaller lunch to balance everything out, now I dont have the same cravings I used to. Its been a slow year but I am happy with it.