Suggest Treatment For Hypothyroidism With Depression

hi i'm 31 years female,since 12 years i've hypothyroidism, n i'm taking eltroxin for that. my problem is since last year.now i'm living in a small family,before that we're in a joint family.in that time i was too busy,n everybody appriciate my every work. n i took care of my kids very well in that time. but now even though i became free i can't do any things with happiness. even i can't help my kids in learning. even cooking also. i've become too lazy.i started to eat too much, so i became too fat. this is leading me to quarrel with my hubby n my kids.every time i want to eat out side food.even i know this is very bad thing i can't stop this. i can't concentrate on any thing.some times i'm thinking of death.i really don't want to be like this. what should i do?????????????????