As hard as I try

So as of January 2nd, I've cut out alcohol altogether. I am not a huge drinker but figure 2 light beer would amount to 175 calories or 2 glasses of wine, 250 calories. If I do the math, 250 calories x 16 days should give me a deficit of approximately 4000 calories. Added to this is less eating and exercising 3-4 times a week. I'm down .8 of a pound as of this morning. It's difficult keeping my motivation up and honestly, the only thing that keeps me going is that none of my clothes fit me properly and I refuse to buy a bigger size, so it's gym wear, as in stretch pants, everyday. I understand why some people go on restrictive diets to Jumpstart their weight loss. It's how I'm feeling today, I best go for a walk and get some courage up.