I'm also 5'10 and just started a similar calorie deficit to lose some weight too. I started at 215 and after a few weeks I'm down to 206.
Also trying to get down to around 160-170 so it's nice to know it's achievable without changing anything but diet. My diet is pretty similar to yours too, lots of chicken.
But I'm going to start hitting up the gym too to speed it up.