change it back to 18/6 not 24. revegging is stress enough. even if it is successful it will might turn hermie with so much stress, which means no chance of clones (what im guessing your shooting for)
after you clip your buds leave it for a day or 2- never stop watering it, water it alot. not soaking soaking wet, but keep it moist until growth comes.
once a day or 2 has passed the longer branches will dry- clip them down at the level where weak, becomes firm- on all the branches. it will essentially be clipped down alot. you just want to wait a little for some of the branches to dry naturally.
clip at an angle always.
it usually takes quite a while for more growth to pop up, but onces it does that will be the turning point and it should start growing slowly, but steadily from there.
sometimes it is also better to not clip it back if it was a small plant.
if it was big with a large main 'wooded' out stem, THEN clip it back.
basically just keep it well watered until you see growth. maybe transplant it.
once you see growth start using vegetive 1/4 strength fertz again.
the only times i needed to reveg was to get clones off of phenos i really, really wanted. its almost pointless to do it for more bud, simply because it will take so much longer, your yield will be close to sht, and the quality will be less.
i would reveg until you get a nice big healthy clipping, then clone it and get a knew mother and so on.