So. That tantrum happened. Ahem.
And that's okay.
It's so much easier to say this to other people than it I'd to yourself. Which is probably why you're writing in second person.
You matter. What you want matters. Your feelings matter.
It's always okay to care.
It's okay to be who you are.
And when you feel jealous or disappointed or frustrated or unfulfilled, those feelings are okay too. They aren't shameful. They don't make you less.
It's your choice what to do with those feelings.
And sometimes? You're gonna wallow on your couch and eat chocolate for a while. And that's okay.
You aren't broken. You don't need to fix it. Your feelings are just fine.