Honestly I have to say pick a resonably calorie level, or maybe a range would work better for you to give you some flexibility when you need it or help out on extra hungry days, and just stick with it for at least 4-8 weeks. Your weight is going to flucuate on a daily basis no matter what your calorie level and if you panic every time it does and change your calorie level you're going to drive yourself bonkers (trust me I've been there
) As long as your're at a deficit you will lose in the long term. Maybe some weeks you'll lose less than other (depending on TOM and stress levels or what direction the wind is blowing) and other weeks you'll lose more.
Also, if you tend to lose more at lower level, then who care what other people tell you. Maybe you're someone who just needs less cals, that's you. Personally I like to see people lose at the highest cals they are capable of (it's always better to burn the fat then starve it) because I truely feel in the long term you're better off and the risk of a low cal diet effecting your metabolism decreases, but not everyone can or wants to for that matter. So moral of the story is that you have to do what works for you. Good luck!