You will not be ostracized, many people cannot tell the difference between a transgender person and a cis person, and it's completely up to you if you decide to live stealth. 🙂 Also, science is making leaps and bounds on the trans* scheme of things, so no worries there.
The journey isn't easy, I was in your position for a long time. But death does not equate to happiness, no more friends, no more nature, no more life. It's scary really. But life is a lot better, because you can live it how you wish, and absolutely nobody can stop you. Don't think of the now, think of the future, when you will be completely happy as a male. Nobody can take that away from you, because your happiness is not, and will not hurt anyone. 🙂