No appetite

It's been 6 weeks since I started out to lose weight. My TDEE is 2000, and I aim to get 1700 calories everyday through food, and exercise everyday (walk 10k steps) to burn around 450-500 calories. This puts me in a sweet deficit of 500 calories. But lately, my hunger has died down and I'm easily satiated with 1400-1500 calories of food. On top of that, I've upped my daily steps to 15k, via which I'm burning around 800 calories everyday. With such a huge deficit and a small intake, should I go on or should I lookout to eat more so that I don't become too fatigued. TIA!