health/marriage

Okay guys, I need your help. I had my daughter this past march & im wanting to get the weight off. I was around 132 when I got pregnant now I'm around 180. (Yeah I know big difference) but I have no motivation to do anything since I've had her. I'm lacking on my school work & feel like mine and my husbands sex life isn't where it once was. But he goes to bed at 7:30 every night because he has to get up at 3:00 a.m every morning. I want to start eating healthy and running in our neighborhood but there's a child molester that lives down the road. (It makes me uneasy running with my daughter with him living there) should I talk to my doctor about having no energy? And just down all the time?