Hmmm just learning from you that an angel can be in form of human being o always take tgem to be a spiritual being guiding our spiritual life which inturn controls our physical life,meab while is goodvto recogbise who oyr gaurdian angel and have a better relationship with him,although my pastor always talk abt this but i am yet to encounter this angel be it in human form or spiritual form.
When you move closer to God,He will make you see clearly and allows your angel to come to you and help you. Just keep on praying that God should bring the angel He has destined for you.