Penelope Scott - Sweet Hibiscus Tea Lyrics Meaning

This is what I personally think when I hear the lyrics, I hear someone struggling hard,

"The bones are melting, the skeleton is ash" I feel like she's basically saying she doesn't feel real or something, like she's disappearing, or like de-association? (Idk if I spelt that right), but that she doesn't feel real I guess

"I am not your protagonist I'm not even my own" Saying that she doesn't have co trol over her life or futire.

"I don't know anything, I don't even know why I don't know" She doesn't know what's happening and she can't figure out how to figure out what is happening

"My heart catches on every thorn, you're already half way out the door" her heart catches feelings or gets attached to someone fast, and before sue knows it they're already leaving her.

"And I have never looked so old and I've never been so cold" I feel like her saying shes never looked so old means that after someone probably important to her left, resulting in her crying for days, not getting out of bed, probably not sleeping well or at all and when that happens your eyes are red and might have some bags under the eyes, which can make you look a little old. And when you feel alone or get hurt by someone you had your trust in, you can become guarded and act "cold" or "rude" to people when they may not mean to.

"And it is 85 degrees" Adding onto the last lyric, if feel like she's saying "Its 85°, so why do I feel so cold? "

These are just my opinions and interpretation of some lyrics, which could be 100% wrong