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I apologize for asking a very stupid question .. but I am honest I still really want to learn in this field ... because I want to be a successful person who can make my parents happy
Thank you very much

There are lots of helpful posts which have been created to help others. Also I just wrote a huge response to @atam81 below.

thanks a lot of friends .. even though my most stout question but you still answer it ...
I really salute you because you are not arrogant
Thank you very much