Actualism is experiential. Thus, experience is central to actualism.
Experience can't be "Right" or "Wrong"
It's important to realize that an experience, in and of itself, can't be 'right' or 'wrong'.
It just is, something that you experience.
When you report or describe the experience to someone else, this report or description might be inaccurate... but if you convey it accurately, it, too, can't be "wrong". You are just relating what happened to you, what you observed, what you felt, noticed, etc.
Conclusions can be Accurate or Inaccurate
However, conclusions you derive from an experience can certainly be accurate or inaccurate, in a factual sense.
You might have an experience of an angel coming down, suffusing you with a Divine Presence, and conveying a message from God.
It doesn't necessarily follow from this, that this is factually what happened - that an angel actually came down to you with a message from an actually-existing God.
Rather all you can say is that this is an experience you had. Whether God exists, or it was all a hallucination, is a separate matter.
Separating Fact from Fiction
Because of the human capacity to dream, hallucinate, make wrong inferences, have cognitive emotional biases, it's critical that you develop a reliable way to separate fact from fiction, supposition, opinion, prediction, etc.
This way you will be able to stay true or in line with what is actual, and not go off the wide and wondrous path.