New to the site, need motivation

stom17

Hi everyone. I started my fitness pal on Monday, I need to lose about 40lbs. I know this may not sound like much, but to me it's like 100lbs. I need major motivation to stay within my calorie intake and add exercising at least 3 to 5 days a week. If anyone can help me with sites that I can go to help nutrition info on low carbs. low fat, high protein diet, or whatever I need to eat to maintain a 400 calorie meal including snacks. I need help in finding recipes that I can cook at home to carry to work for lunch, because I try to eat out healthy and it's not working.
Please help me try to do this one and for all and be healthy and be happy with myself.

Thanks in advance

Susan