Relax.

"Oneness" is an advanced step that few are ready for. We generally need to take other steps first. It is like you are trying to climb a mountain in a single step.

"Oneness" is merely a stick you are beating yourself with. You can stop.

I'm future, before accepting a new idea, look at how you react (both emotionally, and behaviourally) when you believe it. This should be the basis of your decision about whether to accept a new idea. Your beliefs determine how you feel about things, so you can choose how you feel by choosing your beliefs.

You can try this out with everything I've said above. How does it feel? Which things feel peaceful? Which things are not?