We did basically follow the advise of the first article sent and were lucky that he took to it quite quickly. There were a couple of occasions where he barked after being put in (usually when we put him in when he was over excited) but he soon settled. We did also have an Adaptil plug-in beside the crate which I think may have helped.
For some dogs, it can take longer but every dog can be crate trained! For now, it sounds as though she is right at the beginning of the process and will only tolerate very, very short times. This is fine and we just need to be careful that we don't overdo it, which could make the crate a scary space for her. Work on having her in there for a few happy seconds several times a day and you will find that you can gradually increase the amount of time spent. I found that when they were sleepy was the best time as my pup would sometimes happily fall asleep for a few hours in there, not taking too much heed of where he was. As it was day time, I was nearby to let him out as he woke up and before he became upset or began crying.
Closing the door is a big step and one we would only do when she is quite comfortable. Initially we would have it open until she can tolerate longer periods in the crate.
Here is a summary:
1. Encourage the dog in with a trail of yummy treats. Use high value treats such as chicken rather than kibble which some find boring. Continue with treats and praise when in the crate. Use a calm/happy voice. If you want a crate 'command' then say e.g. 'INSIDE' as the pup enters the crate door. Never lift them or push them inside, it needs to be voluntary.
2. Feed all meals in the crate. Initially have the bowl near the door but over time move it towards the back if she is comfortable with this. If we have had lots of successful meals without any fear or 'escape attempts' we can try closing the door while she eats. Be nearby so you can open the door as soon as she is done. However, as she becomes more comfortable, you may be able to leave her there for 30 seconds after she finished, then a minute etc. etc.
3. Crating without meals can start next. Again, treats our are friends. As is patience, so we should only leave her there for very short periods at first. It's fine for you to be right beside the crate as this allows you to ensure she is not anxious or vocal. Over time, build up to you being on the other side of the room, then in the next room etc. The aim is to build up both the time she is in there and the distance we are away so that, eventually, we can be out of the house for an hour or two and she doesn't mind being in the crate. In fact, she should see it as her happy and safe space where she can have time to herself.
I would not try leaving the home until you have had several 20-30 minute sessions whereby she is calm within the crate.
4. Allow her to go in the crate when she chooses. Leave the door open when not in use as she may voluntarily go in to have a snooze or have some alone time. This is a great sign.
If at any stage she reverts to her old behaviour of crying/going mad we have gone too far and need to dial it back a few notches.