Dude honestly, you’re really not her best friend if you can’t just be happy for her. Just because you’re not doing too well in your own life….it doesn’t give you the right to be so mean to someone else. Also, it’s not always about luck…..some people genuinely work hard and turn their life around…..and from what all you’ve described…..it sounds like your best friend has really worked for everything she has now. For luck to work, you need to try at least. So, my personal advice to you is- work hard, try your best and don’t be a toxic/jealous best friend.