Please. Проверьте ошибки в четырех предложениях. Заранее спасибо.

Я пишу эссе. Но я сомневаюсь правильно ли я написал эти предложения:
Today one of the main life aspirations of the youth is a good education. The young people in the 1990 also strove to have a good education. About 30 percent of the Russians at the age of 17-26 have already had an education. 51 percent are going to get an education but 11 percent of people consider that getting a good education is unavailable for them.