I certainly wouldn't say I'm a perfectionist or organised and I'm sure my desk at work would agree.

What I would say is that if it works for you then keep it up! You have a system that's done you well throughout your educational life, so there's no reason to change it just to please other people.

Re-writing notes is a memory aide, so if anyone moans about that, just tell them that you're revising by re-writing the notes.

Maybe your behaviour is a bit OCD, but as long as it doesn't rule your life that's not a problem at all. There is absolutely nothing wrong with being organised. Anyone that tells you different is probably jealous because they wish they had everything organised like you.