Why low weights, especially on upper body? Muscle is what will burn the fat, it keeps your metabolism raised. You will NOT get bulky or masculine. Women have 1/10th the testorerone men have, and MEN have a hard enough time getting bulky naturally.
As far as exercises, you should concentrate on complex, compound movements. Especially with legs. Legs should be squats, lunges, deadlifts....even stiff legged deadlifts. Don't waste time with the inner/outer thigh machines. If you lunge and squat enough, those areas will get drilled. Honestly, I think upper body should be about 8-10 reps.
That is too much steady state cardio....especially if you have been doing the same thing for awhile. Sounds like yout body needs a change. Try HIIT 2-3 times a week to gvie the metabolism a boost.
DROP the protein bars. Even the so-called low carb ones are full of CRAP. They may be low in "impact carbs" but they are high in chemicals and unusable products. Real food, or shakes, are MUCH MUCH better.
DROP the bread - processed.
WHERE IS THE FAT IN YOUR DIET? You need to add almonds, flax oil or olive oil in there.
Meal 1 - eat 4 egg whites, 1 whole egg, 1/2-1c cooked oatmeal or cream of wheat (no bread...it's processed!)
Meal 2 - maybe do a 1/2cup cottage cheese with chopped walnuts or a very small amount of fruit (like around 3 sliced strawberries or 10 blueberries)
Meal 3 - add 1/2c brown rice or 3oz potato to the Tuna meal (instead of bread). Also, add a fat source here, maybe 16 almonds.
Meal 4 - Tuna and Veggies (green), fat source
Meal 5 - Chicken and Green Veggies
Meal 6 - Protein Shake, add 1 tsp Oil to slow digestion