Help needed!

Hey there, I'm a 20 year old guy from the United Kingdom.

The last year I've gained 20 Kg's because I stopped doing stuff I used to do.

I've played rugby for over 9 years, I ride my bike almost every day.

I was around 80 / 85 Kg's, Now oktober 2013 I moved to live with a friend. We share bills etc.

And ever since I stopped working, Mainly because I'm too lazy to even look for a job. And even when I would find one I probably wont go because I dont feel like I have energy for anything.

Today, 2 November 2014, I want things to change! I wanna lose weight, I wanna be the guy that I used to be.

Being able to do stuff without getting tired from even going out or whatsoever.

Last may I got myself a subscription to the Gym, But I've been there once.

Because I don't like going alone.

And I always felt like I'd rather sit behind my pc than doing stuff.

I really really really need motivation.

I just googled a weight loss forum and I found this one, Maybe one of you could be the best person who came by.