Well the answer is plain: If someone says that "x" will happen on a specific date, and the specific date passes without "x" happening, then he was wrong.
From a secular standpoint I would conclude that Camping has a history of failed predictions, so there is no reason to think that his October prediction will occur.
From a religious standpoint I would look at the same record of failed predictions, and say that he fits the Biblical description of a 'false prophet' who 'should not be feared'.
In other words, Camping is wrong. Camping has been wrong every time he opens his mouth and spouts that the end of the world will occur on such-and-such a date. He was very obviously wrong about May 21st, despite his proclamations that "The Bible Guarantees It", and that he was 100% sure, and since the October date was linked to the same prediction, then the October date is wrong as well.
The October date is not another prediction, it was part of the May 21st prediction. Since he was wrong about May 21st, he is also wrong about October.
As far as a 6,000 year plan, I respond that people who claim to know the mind of God are almost always wrong.
Furthermore, I'll suggest that your fears are not based on rational ideas, but rather have become self-sustaining, in other words, a phobia.
You will not get over this phobia by simply hearing that your fears are incorrect, you need to seek professional help for this.