Carb-a-holic in need of help!

Jason and I promised that we were not going to be the 
couple that gained a ton of weight after we got married.
We had plans to play soccer all the time, and to 
go swimming {we have a pool in our backyard...boooya!}.
However, Miami was not kind to us in the weight area, 
and we have gotten into this rut of working, eating, and sleeping.

I've tried to loose weight lots of times, but I feel like no matter what I do nothing works.
That's where all of you come into play.
What do you do to stay fit, loose weight, or just be overall healthy?
I'm a carb-a-holic who needs help!