It takes time for noticeable changes to occur. Initially, there will be a decrease on the scales as changes to your diet will reduce the amount of stored fluid in your body, but then it may slow down or you may not see a change at all for a while.
Your goal is to lose body fat, not weight on the scale and they don’t always decrease together. Focus on making this a long-term lifestyle change and create habits that will allow you to stay fit and healthy.
Losing body fat at a healthy and sustainable rate, that allows you to enjoy the process, takes time. Stay consistent, give yourself small short-term goals and keep track of your progress along the way in other ways, not just the scale.