You can enroll in adult class offered by the city . Check with the school in your area and ask for adult class. THe cost is reasonable and you can learn from basic. If you'd like to improve your writing skills you can go to community college and enroll for English as Se4cond Language class for non English speaking student. The cost is higher than high school adult class but it is affordable comparing to private tutor class. Also the best way to improve your English is to watch the TV with caption on ( that means they have subtitle of English version appear on the screen) so you can catch with words you hear from the talking but you don't know how to spell it correctly. Good luck . Email me if you have more question.