Eat more of green leafy vegetable and you can also start oats meal twice or thrice a day .you can consult your gym trainer if he can fit in oat meal in your diet plan.

as per your schedule take fruit and have more of fluid like juice ,soups or Quaker oats meal for lunch it should not make you feel hungry again .

when you hit the gym always follow a diet plan and try not missing out on any session .speak to your trainer and ask him to give you different form of cardiovascular exercise.

yes you definitely have a long road ahead but dont give up and loose hope .you can reach your goal of 140 some hard work and strict diet can help you achieve that .good luck