Pre scent for half hr. Feed at night in the enclosure. Darken the room and i actually put a black foam board in front so all sides are dark. You basically want it to be dark and stress free. I have one that once you even bump the enclosure all bets are off and you have to wait an hr or so.

You might not be able to make the switch at all and some will just remain on live. But you can keep trying.