My medical records say that i have obsessive neurosis, must've been diagnosed when i was younger - what exactly is it and do i need help?

Obsessive: Obsessive disorder has to do with thoughts that won't go away and preoccupy us, worry us. It is often linked to behaviors that we do to prevent some unknown harm from happening (compulsions). Together they are called obsessive compulsive disorder or ocd. It sounds like you were obsessed with some thoughts when. If that is still an issue it is very treatable by a clinical psychologist. Peace.