First of all let me congratulate you for taking the first step and posting in this forum. Feel proud of yourself for taking the initiation in identifying your sexual identity. In a country like ours where only a countable section of the population come forward in dealing with this subject, and many unidentified homosexuals have to pretend to live as heterosexuals and which can haunt them for the rest of their lives. Therefore, i congratulate you for being vocal about it.
Societal norm is such that man is expected to marry a woman, and woman to a man, and not even for a second a thought is given for the individual's sexual identity. So much so that society and at times the individual themselves think that they are abnormal, but that is not the case.
At this juncture, if you are still confused a bit about your orientation, start by asking some concrete question(s)- What are the various factors you identify yourself as a male, what are the masculine reasons (remember, for different people this term may hold different meaning), the way you think- do you feel that your thought patterns signifies male characteristics? Jot them down. You will gain more clarity by doing this.
Furthermore, your sexual identity and being successful has no co-relation. There are numerous examples of people who are super powerful irrespective of their sexual identity. One thing that is common between all these personalities, namely Ellen DeGeneres & Portia de Rossi who owns a production company, Oscar nominee Lee Daniels, Sheldon (Big Bang Theory), Elton John (famous musician) is that they all belong to LGBT community.
To name a few- Pervez Sharma (Writer), Sridhar Rangayan (Filmmaker), Dj Andy (famous tv personality & DJ), Vikram Seth (famous novelist). and many more. Definitely success has nothing to do with sexual identity but one's determination.
As i believe your immediate support system is your parents it will be wise and motivating to tell them what and how you feel. But don't drop it at one go. I understand they may have their own social perspective and that's alright. You need to do it gradually- Identify with whom you are more comfortable with from either of your parents. Then start talking and discussing with them. Drop clues, look out for some documentaries on the LGBT topics, there are good movies on the same and may be if you consider it wise show it to them so that it can break the jinx.
Furthermore, you can try to connect with the LGBT community there at your place and try to connect with them.
You can always write back to us. I wish you all the best!