Here are a few different ways I would construct this sentence

I was worked in an academy like a teacher but now I am teaching in my home.

I once worked for an academy as a teacher, but I now teach from home.

I used to teach at an academy. Now I teach from home.

I was working in an academy as a teacher. I am teaching now from my home.

Hello

My name is Nuria and I am a biologist. I used to work in an academy as a teacher but now I am teaching at my home. I´m a science teacher for students from twelve to sixteen years. I love learning English and every thursday, I go to a class for two hours with a native teacher and I go to a reading club too because I think this is a good way to improve my English. I like to read English novels and to speak about them in English of course.