I agree with Renate as well. When my humans were babies, they were never left alone to "cry it out." This was (and still is, I'm sure) a very controversial subject, but I thought if they are crying it's my responsibility as their mother and lifeline to comfort them. My kids are now 7 and 3 and go to bed on their own, sleeping comfortably through the night.
When Holly came here as a 12 week old puppy, she slept in her crate. But the crate was in the master bedroom, near my side of the bed. I had a night light on in the room and Holly faced me while in her crate. I found that she got up a couple of times during the night, looked at me, then settled back down. She slept through the night from around midnight to 6 or 7 am. Gradually, that time lengthened.
When she was 6 months old she joined us in the big bed. That really was my choice, not necessarily hers. I enjoy sleeping with her as my husband travels frequently for work.
Perhaps you could try moving the crate to your bedroom, near your bed?