I doun't think that I can add much more to the good advice you've already received on this subject, but I'll reiterate from my own expereinces...
I think you're smart to watch carefully and record everything you eat until you are further along and are more comfortable with this WOE. Obsessing isn't good, but staying focused and making healthy eating a priority is good.
I don't recall exactly how long it took for me to feel a difference in my clothes, but it will happen. Rather than a quick change, allow for a slow and steady comfort in your current clothes to occur. Things that were tight suddenly loosing up and such. Changes to new sizes will take more time, but it will happen.
As for the scale, I prefer to weigh in when I feel certain there is a change. I don't know how to describe it, but some days I wake up and just know my weight is down. That's when I weigh in.
But the best advice I can give/reiterate is to be patient. Just stay the course and in another 4 weeks you'll be here recording how well you feel! And don;t forget to factor in how much more weight you would have GAINED in those four weeks....
Be good to yourself...you're changing habits that caused you to gain weight. It takes a bit of time...
Donald