Do not think too much about costs, we will agree

I'm an international student in elte university
I can teach you turkish,persian as a native
And teach your children english and Germany
The rules of language are like solving math problems, once you understand how to solve it, it can be achieved even with experience, but it is better to learn principles, then all languages ​​will be easy for you
My suggestion is to watch movies and series in three stages The first step is with the subtitle of your mother tongue, the second step is the subtitle with the desired language, the step is without subtitles