More than twenty years, I am learning English but I am not good nowI have been learning English for more than twenty years, but I am still not very good. I have been learning English for more than twenty years, but I am still not very good.

I think that I was only focused abouton reading tests like TOEIC. I think that I was only focused on reading tests like TOEIC.

I tried to participate in classes where everyone should speak only English, but it didn't help to improve my speaking. I tried to participate in classes where everyone should speak only English, but it didn't help to improve my speaking.

One years ago, I decided to start writing in English. One year ago, I decided to start writing in English.

After that, not only my writing ability but also my speaking were increasimproved. After that, not only my writing ability but also my speaking improved.

MyI sktill iscan't still enough to speak fluently, but I now have nowthe confidentce to study English. I still can't speak fluently, but I now have the confidence to study English.

or "to keep studying English"