Welcome to Newf Net! We have a "Lucy", too. Great name choice!
Our first newf pup, Maggie, had a full blown panic attack the first time we put her in a crate. So we backed up and started over with her, to get her to like it.
We started Maggie out in a room with her crate in it...with the door off of the crate. She could go in and out at will, so she never felt trapped in there. We fed her in the crate, tossed treats and toys in there for her to go after, etc. After a week or so, we added the door, and would just push it shut, but not latch it, while Maggie ate in there. As she learned the "sit" command, we would leave the door shut after she ate, and have her sit, then we'd open the door.
We had the crate where Maggie could see us working in the kitchen, so eventually we'd leave her in there for a few minutes at a time while we were in view, then casually go over, have her sit, then open the crate.
We worked it up to longer periods, until we were leaving the house for a while, or putting Maggie to bed in there. All of ours love the crates now, and if one is open, they're all trying to be the one to get in it.
Just make sure that being in the crate is a pleasant place to be for the pup. Get in a routine, especially at bed time. Feed, potty, maybe a quiet grooming session, potty, and then into the crate for the night. Tell the pup "night-night". Maybe give a small treat when the pup settles down, then turn off the light and go to bed. We used to leave a radio playing quietly all night, so the pup wouldn't feel alone, (and the dogs still seem to prefer country music!)
Good luck!
