Don't worry about your weight I been running for the last 7 years, 49 year, 185 lbs, 5'9, 8 full marathon, 8 half and I am do not loose any weight,
I don't know why... maybe are my genes because there is many overweight relatives in my family, but I feel great after I started running. I'm very healthy and happy
Don't give up, feel proud of yourself, maybe you don't know but you are example for many people around you.
And after the long working day lay-down on your bed, sofa o floor rise you feet for 15 o 20 min. that could help you to rest
Good luck!