There is no scripture saying that angels are like us, they are separate. They live in a different dimension than we do, and we almost never see into that dimension. God uses them in several different ways, usually as messengers. Except for the fallen angels, they operate completely within God's world as opposed to humans who choose whether they want to live that way or not.
Perhaps humans who are able to make contact with them, as is reported several times in the bible, have seen them with wings or as men, but in reality their being is in a completely different form.
I have made contact with them twice in my life, and both times they did not like my being able to comprehend they were there. One time was during a birth and another was during a death, and their work had to do with the spirit of these people both times but I could not understand what they were doing because I am human. At death, they seemed to be helping the spirit make the transition to the new life. At the birth they made the decision that the baby should not live based on the life it was going to and the condition of the body the spirit was to live in. When I asked for special permission for the baby's life I was told it wasn't their decision to make for if they followed natural law the baby was not to live but they would ask permission to let the baby live. That permission was granted, the baby lived but died when she was 21.
I have checked over scripture having to do with angels. Scripture does not say this is how they are and work, but nothing that happened disagrees with what we are told.