Lifestyle change;low social skills friend; fighting teens

Dr Julie Helmrich, famous Shrink'n'Drink psychologist from Milwaukee, answered these questions: 1)missed a day on my New Years Resolution. Do I start over counting to make it a habit? 2) Friend who is rough-around-edges wonders why people have a hard time being around her. Does she really want friends or just trying to protect herself? 3) Teen children are fighting about something important, not typical fight. How should I, the mom, approach this? 4) Bro-in-law acts generous when others looking but sneaky/stingy when not, what to do about that? 5) Husband talks under his breath and says nothing when I asked him about what he said. How do I get him to talk with me?