Translation of esforzarse

Thank you for writting back so quickly. I learned English when I was a kid, because we've always been in England during summer vacation, since my grandma used to live there when she was still alive.
The conjugations of verbs are the biggest problem for me. I have never studied Spanish in school, but visited evening classes instead. This year I want to take a full Spanish course.
My morning was great. How was your weekend? In order to learn the language to a high level I figure you need two or three years. I was in Malaga last summer for a few days and studied a lot.