Actually sideways is ok, as long as you remove everything around her that can suffocate her. Ideally she should be in a cot without toys/pillows/blankets, etc.
If you’re willing to wean her off the pacifier and don’t let her have it during sleep time then she’ll gradually learn to self soothe without it
Hang in there:) have some courage and sleep train baby (from 4 mths onwards), and the reward is so satisfying. Haha. My kids sleep in their own cots on their own, and through the night. No rocking/patting/singing etc anymore
Vedette