PLAN FOR WRITING

We are taught 'plan' is important in writing.While we are making plan we note everything what we want to say and order our ideas.It is said that this is effective for a fluent writing.However I totally disagree with this idea, because when I make a plan,I think, there is no suprise both for me and for reader.Also I want to write anything which I haven't remember while making plan and I can't write it on account of its absence in plan.Plan is something really restricting my freedom in writing and I become happy when I write as I want without plan...