I think you have good ideas, but you go off-topic a bit (in my opinion); for example, you discuss your definition of time when this prompt really asks you about how people get to know one another.
You should also try to make your writing more precise by eliminating vague pronouns (e.g. "By intamacy, I assume that they mean a friendship."), vague wordings ("Opportunity is all about the choices you make and the positions you put yourself in."), etc.
Overall, your essay would be greatly improved if you chose two clear ideas to defend and explain, for example, humans can never truly know one another without spending a great deal of time together.
If you could let me know whether this feedback helps, I'd appreciate it. You'll notice that most of the people who post essays and receive feedback never come back to give feedback on the feedback. It's really important to know what helps people so that we can do better in the futre.