help camera is crazy

im sorry i dont speak english i will try with my bassics

i have this trouble when i try to open a new project i am new in this ive downloaded the unreal engine 4 yesterday and it was working fine and today appear this problem. thank you guys. - YouTube

Do you have a gamepad/controller plugged in? They can sometimes glitch and spin the camera, this could also be a key that is being pressed. I suggest you restart your computer.

that was the problem i feel so stupid lol thank you very much