Hi , thanks for answering 
I finally managed to get it works by pacthing knowledge from here and there, my biggest mistake was problably initializing it the wrong way in the constructor. Here is what I did if someone ever asks
I derived from ActorComponent, giving me a class I had to manually link to my pawn, this error message came when i put
UPROPERTY(Category = Comp, VisibleDefaultsOnly, BlueprintReadOnly)µ
TSubobjectPtr[class UOF_ColorComponent] ColorComp;
(I replaced <> by [ ] here because things inside disappear)
and tryed to initialize it by following
wich didn’t seems to work ( I am an almost total newb in c++ and programming btw, I might be wrong
after doing some research I ended with a simple
AOF_Pawn::AOF_Pawn(const class FPostConstructInitializeProperties& PCIP)
: Super(PCIP)
{
ColorComp = PCIP.CreateDefaultSubobject[UOF_ColorComponent](this, TEXT("ColorComp"));
}
and #include “OF_ColorComponent” in my header file
it seems to do what I’m looking for so far, inheritance of my component class, I just hope I didn’t miss something for the moment I’ll call it in any functions later.