Healing and calming thoughts your way
Been "doored" three times; twice messenger-ing in London, once in Brizzie (Oz). The first one I screamed and swore at this dork who replied "I don't know what a dork is but you are so rude I won't give you the 5 pounds (sterling) I had planned when I first realised I had caused an accident"; the second just ran away (really) in Upper Class Twit of the Year fashion (while I was telling him what an idiot he was) so I bent up his wipers, mirrors and aerial. The Oz one *I* needed an ambulance.(Screaming and swearing are less effective in the Antipodes anyway)
I think it is basically unavoidable as drivers simply don't look before opening the door.
Relax, pamper yourself, get the bike fixed on his money hopefully, get a new helmet (?) and carry on enjoying riding till the next time!
All you need is love...la-dee-da-dee-da...all you need is love!