Colliders Don't Work no matter what

Some help or ideads or even a shared screen help would be much appreciated. The thing is that my character keeps going through walls no matter what.I added collider,rigidbody,tried scripts and many other solutions that i found online but nothing seems to work.Anyone up to help with this task?Also i'm making the game for android so i use buttons to move around and i use cinemachine in 3D Follow.I saw that i can move free without character controller.And the big disanvantage i have is that im new in unity.Jumped from Godot. Heres a picture.

https://prnt.sc/w5edw5