How to learn English I‘m afraid to learn English,I don't know how to learn,where should I start,read?words?write?My English base is very very ......

My job I am works in oil field for 3 years.Before I came here,I worked in school teacher Chinese for 2 years.My job is to measured the total oil in one day.It very smilp but too bored.I‘m take a match recently,it about operation of our jobs.My English is poor,maybe you can not understand what I say.So I need a friend to communicate.I can read many English,but don't write and speak Engilsh.