Cómo puedo cambiarme de alumno a profesor usando el mismo correo?

Help me to correct this D.Sanchez has been working in education since 2005 until now days, he has been working in different areas., kinder garten, elementary, preparatory, university and courses teaching ENglish as a second language, he has collaborated with schools such as Discovery, upaep, among others. He has also participated in the federal programme for SEDSOL "piso firme" around Puebla as a supervisor accomplishing several operations being an effective and economic solution to carry out formalities through this federal programme. At the beginning of 2014 he joined to Hotel Aldeas where he had contact with a different sector, tourism. After this, he decided to take advantage of his and applied to the master degree in Business administration at Unid. Finally he got an opportunity and applied to join to Hoteles Club Solaris, where he became a representatuve of Resorts Condominiums International as vacation agent.