What's the difference between a psychotic and neurotic?

Reality testing: Someone who is "neurotic" may be plagued with guilt or self-doubt, usually related to conflict between their desires or urges and feeling inhibited, or prohibited from acting on them. Psychosis may involve similar conflict, but the thought process involved may extend to fixed false beliefs (delusions, such as paranoid beliefs about being persecuted) and/or hallucinations, e.g. hearing voices...