If not everyone holds the belief that you have, is it possible that they have different experiences than you have? Is it also possible that they have had the same experiences, but just given them a different meaning to yours? If so, who is right and who is wrong?
The answer of course is that no-one is right or wrong, they are merely responding to their own, unique experiences of their world. If this is the case, then would it be true to say that your validation is not universally true, but that it was true on one or more specific occasions in your life? If this is so, then is your validation experience something that is certain, or is it simply something that was true on a few occasions in the past? More importantly, is it still true today?