Starting over again!

Hi everyone!

After a year of being a backpacker in Australia I have put on over 2 stone! I know why, drinking and eating whatever I like and lots of it!
I am now in New Zealand and will have a stable place to live for 6 months and want to use this time to lose the weight, so I don't look fat in all my photos!! And so I am comfortable and happy.

I am feeling anxious about starting over again, I use to go to gym 7 days a week and eat fairly good but I have never been thin! I am looking for any tips or motivation or anything that will help me feel better and kick myself into it!
Any words of wisdom? Or friends to be?

Thanks :) x