Some sentences in some tenses

I had learned English in a lanuage School before I noticed that I can learning English by myself.
I am learning English by myself righ now.
I have studied English by myself since for three months.
By December, I will have been studying English for by myself for several months.
I began stuided studying English in a language School.
Currently I am thinking that a language School is not a better place to study English.
I will hope that I continue studying English over the next few years.

Thanks