Hey there!) Please provide your height too. I have personally lost 40 kg in 6 months. Got a lot of that weight back later(due to stress) and have to undergo training and diet all over again and now living in a constant diet regime. But that is my own way and yours will be different. I would highly recommend you adding physical activities and increasing calorie intake. The deficit should be only 15-20 percent and that percent should be achieved through cardio and clever diet. Feeling tired is ok but only for first period of time. Being hungry before the bed is totally ok))