Yes, you do need more protein, IMO. But 2.5 weeks is not near enough to judge your bodies response to this diet.
Try for around 65%, 20%, 15%. You should feel full all the time and have plenty of energy after about 1 month or so. Weight loss will be a little slower than with 80% fats but you'll be healthier and be able to maintain this diet for a much longer time.
I'd say that for your height 1500 cal is plenty. In fact, later on you may want to reduce that.
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