I've lost 34 lbs want to lose 50 more. I watch my calories and log my food and exercise 6 days a week but hit a plateau. What do I do?

Control your carbs. Congratulations on your success! now it's time to put positive lifestyle habits in place that will keep you healthy (that's how you get to a proper weight). The bottom line is to eat real food. There are 2 good places to go to learn what that means: primal and paleo lifestyles. Stop counting calories and start controlling starches and sugars (no more than 100 grams of total carbs/day).