Hi Kelly and Welcome to the TDC. I also had trouble with consistency. I'm not following any particular plan but am probably closest to Atkins OWL. I found that using http://fiday.com helped me to become much more consistent. Right now I'm averaging about 50 carbs per day and it seems to be working for me. It was such a good feeling to weigh myself today and find that 1.2 lbs have just disappeared!

I think the key is to learn what works for you on a daily basis. Since you said the carbs at dinner make you sleepy, then cutting back on the carbs for that meal would be in order. I find that if I have my carbs spread throughout the day, then I don't get nearly as sleepy. There used to be many Saturdays and Sundays that I would take a nap every afternoon. It is so good to be free of that!

Good luck to you in whichever plan you use.