Can A Person Lose Weight While Still On Thyroxin?

Hello Doctor, I am ...... and im 25yrs old. female. unmarried and working women. I have TSH 7.5%, so i am having Sodium Throxine 50mg. doctor said i have hypothroid. im gaining weight. i want to lose the weight, i want to know, is there possibilities of lose my weight while taking the throxine tablets? and i lost my fairness, i got pimples in my face. can u give me some suggestions of food and proper intake. as i searched in google, it is saying i need to avoid Wheat, white rice. im so worrying , i dont knw what i need to take, pls suggest me.