<human>: My weight fluctuates in a range of about 5 pounds.  I can weight myself today at 8am, and tomorrow at 8am I can weight 5 pounds more/less.  Not necessarily 5 pounds, its just a wide and unpredictable range.  

I've been working out hard for 6 weeks.  About an hour of cardio and an hour of lifting 4x/week.  Keeping calories at what I expect is a 750cal/day defecit so as to lose 1.5lbs of fat/week.  

I'm overfat and untrained, so I expect I can actually add some muscle as I lose fat for a short bit, while I'm still getting newb-gains.  I've noticed some small changes in my physique and definite improvements in strength.  

So here's the thing.  I can't trust my scale to tell me if I'm making progress that I want.  If I cant trust my scale, I cant trust my calorie counting/defecit estimation is correct.  I can tell I've lost a few pounds because the average weight has reduced a little, but for the calories I'm estimating it should have been more.

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<bot>: I want to use the scale to help make adjustments for my calorie counting/defecit, but because of muscle gains and water fluctuation I can't.  What do I do?