I'm creating a game and I need to fix the camera without using plugins I can also hire by the hour in that case if we have time we would do more things by video call

I'm creating a game and I need to fix the camera without using plugins I can also hire by the hour in that case if we have time we would do more things by video call also i could send you the project to fix the camera ,things to fix :the movement of the camera to make it more normal and assigning the camera to a instantiated creature ,controls: left mouse button to summon/instantiate the creature wasd to move both creature and player,without the camera assignment the characters dont move the code is done it is needed to be fixed