my only advice is don't try to be someone you are not. Teaching is generally (and I think I may have said this before) an amplification of your personality - be yourself but only more so, if that makes sense.
I know, I have taken note of this, but as my real personality is an over-sexed, semi-alcoholic, Symbolist poet-reading Bohemian, I've been a bit worried about this course of action. So I'm suppressing myself, and being a teacher. Not chain-smoking on school grounds, for example.
Trying to be organised is the hardest thing.
If I do pass as a successful teacher, and at the moment I'm not sure I will, I think it will only be on my own terms. I seem best suited to lower ability Yr. 7 (who are great: funny and vulnerable and lovely) and A-level (smart and up for the challenge). Year 9-11 are well tricky.