re: Rapid fatloss diet support thread

Okay, folks, I'm gonna lay this out and hopefully you can tell me what I'm doing right, wrong, and make some suggestions.
I'm 34, 5' 10", and this morning I weighed in at 170.0. I'm an electrical contractor so I'm fairly active at work.
At the beginning of May, I was 180+. I started going to the gym but it's not something I can make on a regular schedule. Sho I got serious about my diet.
For the past few weeks, my daily diet has been this:
Breakfast: small bowl of oats and honey cereal.
Morning snack: bottle of naked juice.
Lunch: 2 servings of smoked ham and Turkey wrapped in a slice of cheese. One serving of raw vegetables, usually broccoli, carrots, or cauliflower.
Afternoon snacks: 2 boiled eggs a couple of hours apart, around 2 and 4 o'clock.
Dinner: lots of grilled chicken, quinoa, brown rice, or some taco salad with small amounts of dressing. Things along those lines.
I've also substantially increased the amount of water I drink. I'm easily going over 100 oz a day.
I've lost 10+ lbs since the beginning of May. I'm down from a 34" waist to 32". What I'm worried about is whether I'm doing more harm than good. Is that enough protein to keep from losing muscle?