Need help, new diet/exercise plan. Am I on the right track?

[Nestea]

Hi All,

For the past couple of weeks I've been following this diet/exercise plan (I'm looking to lose about 40lbs & I'm a 22 year old female):

Breakfast: Oatmeal + 125ml of 1% milk + banana = 300 calories

Snack: Fat-free yogurt = 70 calories

Lunch: 2 slices of roasted deli turkey, 1tsp of honey mustard, cucumber, tomato, lettuce in a whole wheat tortilla wrap = 310 calories

GYM SESSION

Snack: fat-free yogurt or apple = 70 calories

Dinner: Boneless, skinless chicken breast, grilled, medium size with a side salad w/cucumber, tomatoes, and 2tbsp fat-free Italian dressing = 320 calories

Snack: Usually an apple or a 35 calorie Activia yogurt

I exercise 5x a week, so far doing an average of 40 minutes on the treadmill keeping my heart rate at an average of 160 during the session + 15-20 minutes of weight training.

Because of my schedule, my exercise is after my lunch meal. My only worry is that after my dinner meal, I am pretty sedentary. I sit at a computer and get work done before bed for about 4 hours after dinner/before bed.

Also, my average daily carb intake is about 160g. I was concerned about that possibly being too much?

Should I make any changes to the above plan?

Thanks!