Sorry but I don't think dressing like a teeny bopper when you over 30 makes you look younger. It makes you look ridiculous!
As for me, I've outgrown the boho tops, the ruffles, the midriffs and flowers. I have no desire to dress like a little girl at my age. I go for the more classy stuff. As a size 6 I certainly could wear trash if I chose to. It's about looking good, not looking younger. Trying to look 20 at 50 never works. It just makes a woman look desperate to be young again. It only makes em look silly.