Is my decision to study abroad correct?

I have talked to my parents yesterday about it and they are ready to send me US(texas), to study further in texas A&M university for petroleum engineering.
I'm from India and there is a huge huge competition in India in engineering.For example, take IIT mumbai, which is ranked 1st for engineering in India is actually ranked 200+ globally with a acceptance rate of about 4% only(more selective than MIT,USA !)
And don't ask me if I could afford it or am I able to get admission in texas A&M ... I'm pretty much sure I'm...
What I'm afraid of is I'll be coming alone, and since I'm minority (Indian+black), will my 4 years sacrifice to the university worth it..
Also give me a idea about if you have seen any person with same experience here in US that how is it for him..?
(And I'm male)

You'll do well. Don't worry. Everyone else on campus will be there without their families as well. There are many other international and minority students on campus. You'll be fine. :-)

More info:
http://www.tamu.edu/international/