Essay (University education)

Hello there. Right now I am preparing for the IELTS exam, and the most difficult part for me will be the writing. I have written this essay as a part of my preparation, and I will be very grateful to anyone, who will fix my grammar and style mistakes. (I've checked spelling using dictionary). Thank you in advance.

Question:
People attend college or university for many different reasons (for example, new experiences, career preparation, increased knowledge). Why do you think people attend college or university? Use specific reasons and examples to support your answer.

Essay:
For the past [one] hundred years, our civilization has achieved incredible results in science, and it is said that at the moment we are developing with [an] exponential speed. New times dictates new conditions, and in this new world education plays one of the main roles. Nowadays, many branches of [the] economy feel [a] shortage in good specialists and [an] education in [from] colleges or universities becomes essential in many aspects. However, any student will [can] receive benefits from extra education.

Firstly, the possibility to continue education after secondary school means [the] prospect of [a] high[er] salary. [A] more educated person is able to perform more complicated work, he knows his branch [field] in more detailed way and, as a result, is more profitable for [an] employer. For some high-paid professions, the higher education is a requirement due to profession complexity. For example, you can not become a doctor just after finishing high school, and I see it very reasonable due to very complicated structure of [the] human body. To be able [to] diagnosis [diagnose] the illness, medicine specialists have to know a lot about it. However, such knowledge require[s] considerable time and therefore should be studied at university.

Secondly, sometimes higher education allow[s] to develop [the development of abilities] ability and talents of the student. If he has already chosen his future profession, he will get more knowledge and experience about this field in college or university. Especially it can be said [This can be said especially] about young scientists or people related to complicated fields such as engineers, builders, or programmers. Higher education is the most prospective way to become a professional and to do favorite business.

In conclusion, it can be said that nowadays higher education provides a lot of benefits for students. [The] economy require[s] professional workers, and educated people receive higher salaries. But Also, universities and colleges provides [a deeper] more deep understanding of [the] subject and allow[s] to discover [the discovery of] new areas.