this IS one skill you can practice in lite winds
also, what helped me was: i used older REALLY long harness lines to feel what it is like
those lines were floppy and had to almost be put on manually - better to have stiffer lines that stay
now i get in and out of harness lines without looking
lift up on toes and hips forward and sit back
to get out i twist my hips away from mast slightly while upon toes
most people harness first
i am still fruss stapped