I don't know your situation, but you might not end up making those sacrifices. Losing friends is probable - though to be fair, I wouldn't be friends with people closed-minded enough to freak out at transes. My family reacted negatively, but came around later, job opportunity loss is not a factor, as you can present male until presenting female works out, and harassment and hate only arise if you don't pass - which again can be avoided by presenting as male until you look female.
The only problem that transitioning would create would be the coming out period. That is, when you start full-time. Depending on the people in your life, you might have to start fresh, but... it could, just the same, turn out just fine.
And to note, dysphoria doesn't have to be bad to transition. For myself, transition was a way to be happy - I could have lived as male, but being female makes me much happier. I have a bit of dysphoria, but most of my dislike for things like my genitals are pragmatic in nature.
Perhaps being optimistic isn't realistic where you are, though. The US certainly seems like a more hostile place than its northern neighbour... and I apologize if my assumption about your nationality is false. I do think that horror stories are fairly infrequent, however...
Do what your heart tells ya. But let it know that doom and gloom is a rarer find than it is led to believe.
