Hi Duduu I'll try. Press the home button that brings up the large icons at the bottom of the screen. Move to the right untill the end of the screen where you see the white icon with 3 /// on it. Move one more to the right. The icons are now smaller. Go to the icon of the app you want to delete. Notice the "arrow on top only it. Click the up button on your remote twice. You should now see a little icon looking like a face. Press ok and the app will delete. Another trick: Notice the as soon as you see the little arrow pointing upwards above the icon /app you can also move the app let and right. Press down and slot it into the row off app icons you want it. This works nice if you want to move your apps to a place on the screen you want them and it makes more sense to you.
I hope I explained this in a way you can understand!