Just getting started and hopeful

Hi I just joined a couple of weeks ago but I didn't start until today. I was very excited to find this website. I have 100+ pounds to lose and have had very little will power in the past. I am tired of getting in my own way. I appreciate all of the support I can get. I can usually do pretty good at eating healthy but I have a very hard time with exercise. I have two kids and a very busy husband so a lot of days I am left to take care of the kids by my self. By the time I get the kids in bed and all the other chores I am exhausted. I am not a morning person so getting up early really hasn't worked out well for me either. My biggest challenge is going to be motivation.