Good luck Alla!
It sounds like you have a good coach.
Building muscle mass is VERY important for increasing the metabolism and burning more calories so I was glad to see he has that on your agenda.
I personally had great success when I switched to a paleo diet, very low in carbs, no gluten, no sugar, no fried food and no processed foods. I lost 35 lbs in 5 weeks with no exercise. I also cut down the alcohol which has great effects all around.
Looking forward to seeing your success.
Cheers.