Brand new to Home Assistant.
Installed Mqtt, flashed Sonnoff P new firmware
Serial port set to what was stated in hardware.
My hair is white enough
Please help
Welcome to the forum, Jerry 
Your support request is much too sparse to provide any useful help.
You might want to learn about How to help us help you - or How to ask a good question and rephrase your question.
Please post your Z2M config to help us help you...