Plan some high to moderate intensity exercises or interval training for each week especially if you have been only doing steady-state cardio. High-intensity exercises have shown to help with weight loss more than regular steady cardio on a treadmill for example. These exercises tend to burn more calories and more fat each session thus will start showing significant results. You can design your own routine depending on your body and what you prefer personally. Some exercises include jump rope, mountain climbers or sprinting. Even climbing a flight of stairs 2-4 times repeatedly can help with working out intensely. Increase your lifestyle activity level as well to help speed up the process. You can always do something such as gardening or mopping your home floor to include an added bit of cardio to burn those calories.