I'm confused

My sister came out to me today. She's two and a half years younger and according to her, bisexual. She asked me to help tell my parents. First of all, for some reason I don't want to believe her. My sister isn't the kind of person to make this stuff up or decide it on a whim but I don't want to believe her. For some reason I feel like she's lying or being dramatic or imagining it and will never actually go out with a guy. Second of all, it pisses me off that she feels comfortable to tell my parents after knowing I don't know how long but most likely less time than me. She's younger than me for god's sake. I should be the one to tell first, right? Still, she's always been a little older than me I guess. I'm smarter, no bragging but she's more socially capable, better at sports, music, and people. That girl can make friends anywhere and honestly it's because she's a really sweet person. i'm not sure I would call her outgoing but she is definitely one of the nicest people out there. Her confidence in her bisexuality is another indicator that she is mentally older than me. I really wish that I was confident enough to tell my parents. I've made a promise to myself that if I ever get a girlfriend I'll tell my parents. At the same time if I don't come out I won't get a girlfriend but I don't think I'll be confident until I actually am with a girl. It's a vicious circle that my sister has already escaped. I guess what bothers me the most is that I might not escape and I'll die alone. I don't want to die alone.

I want to be happy for my sister, but selfishly I can't be because of my own shortcomings. Am I a bad human?

Amazing Person

How do you talk to someone amazing? Do you have to be amazing as well? Do you even have to be interesting? What do you talk about? Do you have to like the same things? Do you have to like similar things? Do you have to have the same friends, live in the same area, on the same planet? Does that person have to want to talk to you or can you just say hi? Do you have to be the one to say hi or can you just hang around in the corner of their eye until they figure out that you want them to see you? What do you say after you say hi? What do you talk about? Their life? Your life? How would they ever find your life interesting? What's a safe thing to start with? What's something that won't make them hate you as soon as the words leave your mouth? The weather? Classes? Politics? The football game? What if you don't life football and they do? What if they like football and you don't? What if you talk and they hate you? What if you are the worst person they ever met? What if they don't want to see you ever again? What if they are too smart for you to keep up with? What if they think you're an idiot? What if they spend the rest of their life wishing they'd never spoken to you? And what if... they aren't amazing?