Ps4 controller disorder?

Wanted to ask if someone had something similar or know what it is when I gamble, for example, fortnite my player is looking into the air or up even though the stick looks forward and I move it and upwards

I had such a problem with the right stick before.
For COD e.g. In that case, he just turned random very often.
I assume that something is broken in the controller. I've just bought a new controller. Whether you can fix this somehow yourself I doubt it.
If you want to try that, then you would probably know someone who knows it and who disassembled the controller and see if you can identify where a problem stick.
So many choices are not there. Whether you can fix it yourself then is another topic. Then it depends.
But certainly not easy for a layman.

Thanks bro