concerning re-arranging your bedroom back to the way it was.
don't do it. it would only remind her that she was happy then and unhappy now. same a showing pictures of a happier time. it doesn't work the way you're hoping it will.
she wont long for the happier days, instead she'll curse the unhappy days.
if anything, make it new.
again, read through what you've written. where you said you were doing something to get her attention or reaction is where you need more work on yourself. in her eyes it would be taken as insincere and therefore unattractive.
and its understandable, the concept of 180s and DB'ing is confusing in that you're here to win back your W. but the things you fix in yourself cant be done for the purpose of winning back your W. your changes are to make yourself more attractive to your W, but you shouldn't do them for that reason.
its the difference between being sincere and being a fake.
"In a ham and eggs breakfast, the hen is involved, but the pig is committed".