Проверьте, пожалуйста, текст на содержание ошибок.
I would like to be a surgeon. This is very impotant job. Surgeons should be an accurate, relaiable and well educated. Also the should have ability to make desisions quickly. However, all people need surgeons sometimes.
I will never be a hairdresser. This is not my job. This job is not exiting. And hairdressers is not impotant for people as a surgeons.
So I prefer to be a surgeon.

Напише лучше не "this is not my job" а "this job is not for me" и небольшая ошибочка "and hairdressers are not so important for people as a surgeons. That's why I prefer to be a surgeon more than to be a hairdresser"