iMessages from MacBook send as my email instead of phone number

You need to sign up to use you appleID for iMessage with same appleID that you use with your MacBook (@aol email) on the phone.

This can be done by going to settings -> messages -> send & receive; and tapping the option, which reads something to the effect of "use appleID for iMessage".

Once it logs in and activated, Apple will associate the phone number with your email address and it should show up on the Mac. If it doesn't, try logging out and back in from iMessage on the Mac.

This happened to me when I changed my Apple ID password. I updated my password on both my iPhone and on my Mac but the phone number never even showed up as an option on the Mac. I then went to my iPhone under settings and messages and toggled the iMessage and Send as SMS switches. Immediately a message popped up on my Mac asking if I wanted to associate this phone number with messages. I clicked on yes and back in business.