Starting over, again

Wow! This is very, very difficulty. I think the added stress from work contributes to my over-eating. I have to learn to break that habit but really do not know how. I read articles and everything but nothing has triggered the response to lose this weight for a longer life. Damn, I did not think it would be this hard......I am on DAY 1, AGAIN......DOING THE 4-DAY DIET......MY WEIGH IN AS OF THIS MORNING WAS 185.5.......I HAVE 45 POUNDS TO LOSE AND THIS IS GOING TO BE HARDER THAN I THOUGHT. I did go to the gym on my lunch break for 25 minutes and I will go again this evening to an aerobics class. I figured if I could not control the eating I would incorporate more exercising into this journey. I am so frustrated with this and hopefully, I will find a way to lose this damn baby weight as I like to call it.....although my youngest is now 5 years old and headed to Kindergarten this fall. What can I do about this weight? Any suggestions?