How to make a decision

I had been looking for a job for a long time to practice what I had learnt in university. Forturnatelly, I got a chance to have a job shadowing in an accounting firm a week ago.which start from July 1 for a year.
But yesterday, I was told that our university offer us a chance to have english classes for free, which are taught by teachers whose native language is english, starting from July 8 to July 30. it is really a good chance for me to learn english,but If I go to the class, then I have to give up the job,I really want to go to the class and get the job, what should I do?

Always write country with capitail letter English not english

If I was you I would go and study English. You have all your life to work))