Welcome to 3FC =)
You posted in the right area!
There are a lot of sections around here, so it can be a bit overwhelming when you're new, but you'll get to used to it!
You might want to start under the Support area, and work your way down. There's general Weight Loss Support. There's a 20-something's area. And there's also a Men's Corner, too.
Reply and tell us a little bit about what plans you have laid out. What change or changes are you willing to make to be healthier?
They don't necessarily have to start out as big changes, of course. Any healthy habit is a good thing.
Keep coming back to the site, and participate where you're comfortable.