Sleeping problems

My daughter slept with my husband and I at night until a little before 3 months when we transitioned her to her crib. I just slowly transitioned her to sleeping alone & used blankets to cradle her. My daughter hated swaddling--I know they don't recommend blankets, but my daughter was able to kick blankets down & remove them from her face, so I felt comfortable. I would lay it over her & then roll the edges in toward her body to create a little nest. 

Warm Water bottle wrapped in one of your worn shirts with a clock ticking or water sloshing or white noise music playing 

Your baby is still getting used to life outside the womb. Think about it - he spent 9 months inside of you and all of a sudden he has to sleep by himself... Which is why babies love to be held :) esp the first few months. Swaddling helps or a noise machine  can help. Honestly sometimes it just takes time 

Could be a light issue. Try a night light and see if that helps. Or maybe a box/standing fan that makes a good amount of noise