I cant move out! I'm still dependable person!

[Matabaka]

I'm 5'2 or 5'3, my weights it 155lbs, and I'm in my teen age. I don't know how I turned not to care about my size and weight when we moved to a colder country. I just ate and ate out of depression for the whole 1st year. Then I have a friend afterwards who lovessss to eat! I't was fun not until all of my clothes I brought were taken away! That's when I realized, I've gained so much weight for the past 5 years. I was 103lbs, and now I'm 155lbs. I don't know. My mom is sexy no matter what she eats, and I'm the opposite of her. She brings food home and I eat it. I sometimes go for grocery shopping because she told me to. I told her I want to be similar to whom I was or what I looked like before coming. I am becoming stress of losing weight because instead of losing I gain! Though my mom help me pick food. I'm once all again becoming stress. My body and brain, I think will file devorce soon as my brain would love to go out but my body says no. Help me please! How could I lose 45lbs in one year? Or I would be pleased if I do it a half year! It will lessen my depress. Help me please!