Why doesn't my jumping method work?

Hello, I try to implement jumping for a pawn similarly as moving with WSAD keys. The function is revoke when player hits space-bar. All it does is moving object a little bit over ground level and the it immediately falls down. Height of jump is not associated with the value I multiply with the result of GetActorUpVector() function. Why is it like that? Is this ide of implementing jumping correct or should I use an impulse or force to do it?

void AMySphere::Jump()
	if (OurMovementComponent && (OurMovementComponent->UpdatedComponent == RootComponent)) {
		OurMovementComponent->AddInputVector(GetActorUpVector() * SOME_VALUE);
void AMySphere::SetupPlayerInputComponent(UInputComponent* PlayerInputComponent)

	PlayerInputComponent->BindAxis("MoveForward", this, &AMySphere::MoveForward);
	PlayerInputComponent->BindAxis("MoveRight", this, &AMySphere::MoveRight);
	PlayerInputComponent->BindAxis("Turn", this, &AMySphere::Turn);
	PlayerInputComponent->BindAxis("LookUp", this, &AMySphere::LookUp);
	PlayerInputComponent->BindAction("Jump", IE_Pressed, this, &AMySphere::Jump);

If MySphere is derived from Character, you can use Jump() function that’s already there. If for some reason you don’t want to, maybe try LaunchCharacter() instead;

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