I love the way you designed this! To me, by Sen saying he creates his own stars, he's saying that he makes his dreams come true himself rather than just sitting around and wishing. He is his own inspiration. And while I don't know if that's the message you meant to convey, it has certainly inspired me. I'm definitely this!
No, that's only some stars that might have that possibility. Others have been around for billions of years and are still young. Besides, it would take even longer for your wish to reach the star and by that time there may just be a new one.