Camera isnt showing in my unity 2019 project display due to which i cant see or create any sprite in project display

i can not see the camera in my project display when i start unity 2019 and even after adding camera from game object the camera i get is a circle not a camera and even that circle just vanish whenever i click anywhere and no matter how many sprites i create i can not see them in the project display and neither i can move s single sprite,so can anyone please tell me the solution as due to this issue i cant do anything…hoping to get the solution

Try messing with the z axis of the object or camera. Sometimes invisible sprites pops up on screen when I mess with the z axis.