Psychosis or Schizophrenia are totally out of your control and you usually don't know how bad it is until someone else tells you.
Psychosis and schizophrenia are often accompanied by disorganized thoughts and speech. "If the green banana eats regular paperclips, why does the cat like suds?"
Delusion is a fixed false belief. This means there is something you believe that is entirely irrational and you cannot separate it from the reality experienced by others. "All people wearing a red shirt masturbated this morning" is a false belief but a delusional person would go up to someone wearing a red shirt and ask them why they masturbated this morning.
Paranoia is like living in a horror movie where everything is out to get you, you can't stop thinking about how the world itself is hostile and everything stresses you out to the point of exhaustive obsession and you usually don't realize that you are paranoid so you break down into a nervous wreck and don't know why.
Hallucinations disrupt, antagonize, distract, and assault you with stimulus that you can't fight. You can't cover your ears to block sound and you can't make presences go away.
That is what psychosis and schizophrenia are and you most certainly do not have to deal with any of that judging from your post.
Source: I am Diagnosed with Schizo-Affective disorder.
---
http://i.imgur.com/HUpVYep.jpg
Let's make a fighting game that the babies and the nerds and the elderly and kittens are fighting! - Swery 2015