HELP - 20 lbs in 30 days?? Can That Be Done??

So three years ago after a bad break up I lost 80 Lbs in 5 months. It was allot easier than I thought ..I mean don't get me wrong it was hard as hell but I was shocked how the weight fell off and really pissed at myself for getting to be almost 310 lbs. Funny how breakups and love can really be a motivator. So when i lost the weight I felt and looked great for a few months ... but then like everyone one knows you get back into old habits and I was back up to 288 whiten a year.

So now I have been doing ok (gym once and a while) but have 30 days to really focus on myself as my soul mate is gone for the summer. She will be back in town in 30 days for the weekend and I would like to have a noticeable difference in my appearance. So I think if i can drop 20 lbs it will be a good amount and I will be full blast back on the fitness train. I weigh 260 as of now and know how to lose the weight but would love some help on the motivation/accountability factor! Not sure how to keep everyone in the loop on it but I guess this is a start!

Wish me luck!
-Argo