It's that one thing that you're passionate about, that you end up developing tunnel vision for and everything else tends to fall by the wayside. Passion is appealing and universal.
I'm sure that Elvis was happy for me. I think he was the kind of guy that enjoyed other people's success, especially if he had something to do with it.
Focused, hard work is the real key to success. Keep your eyes on the goal, and just keep taking the next step towards completing it. If you aren't sure which way to do something, do it both ways and see which works better.