In my case ..My answer is yes its helpful and useful.

actually I Have been studying english over a year and I learnd many things

2 years ago I Worked company from product management division for 5 months

I didnt like to work this and wanna change other job ralated to trade.

and I Dicided to go to overseas alone and learnd how to comunicate with foeriener .

and then i came and i can get a toeic, opic certifications.

as i concern about my future. its more helpful morn than others.

i believe as long as follow my dream . i can make what i want to do in my future .

I definitly know im still insufficient about comunication skill

its not enough but i will do my best untill im satisfyed with this

In my my own opinion studying English is helpful and useful.
actually I Have been studying english over a year and I learned many things.
2 years ago I Worked in a  product management company division for 5 months.
I dont like to work in this field and I want to change it to other job ralated to trade.
and I decided to go to overseas alone and learned how to communicate with Foreigner.
and then i came to get a toeic, opic certifications.
because I am very concern about my future. This is more helpful than others.
I believe as long as I follow my dream . I can do what I want to do in my future .
I know im still insufficient about my communication skill and
it's not enough however I will do my best until im satisfied with this.