Diet dilemma

I am feeling better lately, not do depressed and eager to get my exercise in when I can. My hubby surprised me aby telling me he and I are going to Cozumel...alone...no kids...in January. That said, I am feeling even more encouraged to use my sleeve to the best advantage to get this weight off as fast as I can and to get in shape. It makes me excited to see him excited about the outcome. Hopefully I will have lost another 30 pounds by January. That's my goal anyway. I would be about 200 pounds and likely a size 12; it will be much easier hitting the beaches at a size 12 than 22! I am just a little unsure how to proceed with my diet. I don't know if I should do a hard core low carb or maybe like a south beach version or just focus on getting my protein and portion control with everything else. Having my sleeve in place makes me feel like th options are endless and I don't really know what to do. I am thinking for now I will focus ongetting healthy low carb sources of protein in and try to eat as wholistically and nutritiously as I can. I was eating my lime Greek yogurt this morning thinking it was good because it had 14 grams of protein and then I realized it had 20 grams of sugar! I am having 1 corn tortilla with a slice of low fat cheese melted in it for lunch most days with a few grapes or berries but I don't know if I am amping my carbs up too much. AAAAH. I feel so confused. I am only losing 1-2 pounds a week and I feel like it should be more but isn't because I don't have the diet thing figured out. I have always had "a plan" for weight loss before and now I feel like I don't...lol...even though I know my sleeve is "the plan" this time. I think I am just beginning to recognize that there is a substantial amount of work involved still and that the surgery in and of itself will not generate all the weight loss I want. At least I am feeling good enough to exercise again!