Doing the low carb thing and pretty successful so far.

[noamnety]

1. I didn't do atkins or south beach

but I've been doing mostly low carb for nearly a year, and I'm active on another forum for that. Here are my suggestions:

Drink more water - 1 to 2 gallons a day.
If you are eating beans (slow carbs) drop them for a week. If you aren't eating them, add them for a week.
Make sure you're getting enough sleep.

Expect losses to slow as you get closer to your goal, that's normal.

Mix up the number of meals you are eating, even if calories stay the same for the day. Try intermittent fasting - skip breakfast or breakfast and lunch, but load your calories into the evening meal for a day or two.

Step up the strength training exercises, if you are doing a lot of cardio, drop it for a week or two.

I had several month long plateaus in the last year. They did eventually break - my body seems to be a big fan of "the whoosh effect."