As you have mentioned, you are working as a teacher, then I hope you have an idea about handling students and reading the psychology of students. If you want to start your career with IT industries then I would suggest you start learning new technologies like Python or Java or any language which can help you to get a job in IT industries.
You can check these playlists for gathering knowledge on Python https://www.youtube.com/watch?v=WGJJIrtnfpk&list=PL9ooVrP1hQOHY-BeYrKHDrHKphsJOyRyu and for JAVA you can go through this: https://www.youtube.com/watch?v=qvf2FMtJPZY&list=PL9ooVrP1hQOHb4bxoHauWVwNg4FweDItZ
One additional piece of advice I want to share with you is that, you can start doing freelancing once you learn or develop skills on the technologies well. There are many online websites who asks for freelancers who can teach them online. As you already have a knowledge of techning, I hope this option will be good for you.