If At First I Dont Succeed, Diet Diet Again

I'm 24 years old and 226 pounds. I've always been insecure about my weight even when I didnt really have a weight problem so I've been dieting since I hit puberty pretty much. Right now I'm the heaviest I've ever been and I realized after I had my second child, it was time to really TRY to lose weight. My main focus is not to be skinny like it was. Now I just want to be healthy for my kids and set a better example for them.      Just recently I tried going on a Low Carb-High Protein diet and failed miserably. I didnt fail in the sense that I tried really hard and didnt lose any weight; I failed because I got in my own head and gave up. I just said, like so many times before "I cant do this... I dont have the self control" When this diet lasted less than a whole day, I realized that I was running out of excuses as to why I can't stick to a diet or why I dont regularly exercise. Diabetes and heart problems run in my family and it scares me to be going down the same road as so many before me, knowing where it leads and just keep on trucking. I mean,  its like seeing the bridge is out but your gonna just drive right over the cliff anyway. I dont smoke or drink but I'm still putting my body through the wringer.  So instead of going on a "diet", this time I decided that I would just try to eat less and maybe a little bit better and then if at some point, that comes naturally, then I will try to do something a little bit more rigorous. So for now, I've eliminated soda and tried to stay away from sweets and snacks and try not to exceed 1500 calories. So far, I still ended up having a Nutty Bar after lunch and the foods I ate for meals werent awesome but I still stayed under 1500 calories, drank a ton of water and feel full and happy. If I even lose just 1 pound per week, I would be happy with that. Trying to lose weight fast and easy has never worked for me. If I try to tell myself "well you cant have this and you can't have that", all I think about are those things that I can't have and want them that much more. Also I'm going to try to do some exercise every day, which may be difficult with three kids but I'm going to make a solid effort which I've never really done before. Cant wait to see where this journey( It is no coincidence that the title of this post is the name of a Journey song)  takes me.