1st note

Hi, everyone.

I'm Haiji, live in Tokyo, Japan.
             I am living in

I have learning English since 2 weeks ago.
  have been learning ... since 2 weeks ago

In Japan, Usually people study English during a junior high school.
              students usually study English when they attend junior high school

But I was non-attendance at junior high school , ...
      I did not attend the English lesson back then in junior high school //
      I played truant in junior high school

so that I had inferiority complex.
                   * it is rather unusual to say oneself having inferiority complex.
                    you may want to say "and so I felt inferior, since I do not speak good English"

I wanna speak in English well.
  want to/wanna speak English well.