very scared

I only have two more vist before my surgery and I am scared out of my mind. 1 only 1 meal a day i just can not wrap my head around! 2. I have only lost 8pounds and I still eat sweets not as much but they are there. 3. I don't eat the same way I did when I first started like fried foods and a lot of sweets and I don't do sodas at all but... I eat 3 meals a day at the most 2 maybe. Has any one else gone thru this or am I just loose it?