Became part of - (Supernatural & reader)

Part 1 - First day

A/n in case you don't remember Ellen is that one girl from season 2. Clown episode. This is in that season area.
Lydia's p o v
Not much is going great. For one, I'm getting weaker and weaker by the day. The second problem is I don't know how to fix it. I found an old notebook with a bunch of contacts.
"I need to find this Ellen chick," I mutter to myself.
I wore a black tank top that had the word nope in white letters and a lace back. I also had slightly ripped jeans and purple converse. I had my white leather bag. It was more of a purse.
After two nights and one afternoon I found the place.
"What be up here," I ask myself?
Then someone presses a rifle to my back.
"I'm like 5'2 is the rifle necessary," I ask the people who caught me?
"As necessary as it gets," the girl insists.
"Thanks for pressing it into my back," I state.
Then I turn and grab the rifle and unload it. She yanks it back but I smack her hand.
"Jo, it's our second visitor today," an older women grins.
"I pinky promise I'm not some crazy supernatural creature. I'm not evil and I only new about you from this old notebook my dad had hidden," I rush out.
She puts the gun down, "notebook."
I nod and show it to her, "my dad's Michael, Michael Axe."
She smiles, "why didn't you just say you were an Axe girl?" She continues, "I knew you'd be coming around here soon. Wearing out so soon, such a tragedy."
I give her a knowing smile, "I'm not dead yet."
She laughs slightly, "that's the spirit kid."
"Isn't it true you're half spirit," The girl asks?
"That's heavy stuff, I at least need your name," I tell the girl.
"Jo," she tells me.
I nod, "well sort of, not exactly half spirit. I barely know so I can barely explain."
She nods before turning away.
"Ellen you know any cases," an unfamiliar voice asks? He continues to ask, "who's she?"
I introduce myself, "Lydia Axe. Who are you?"
He smiles, "I'm Dean and that's my brother Sammy."
I reply, "nice to meet you."
"What's with all this half spirit stuff," Dean asks?
I awkwardly laugh, "I've got no idea. It's a thing."
"So not an evil spirit," he concludes.
"Yep, but if you try to kill me I'm not afraid to put up a fight," I tack on a smile and let my eyes flash purple.
He looks taken back, "normally I'd try to..but I think you're ok."
I smile, "thanks I think you're pretty ok too."
"You boys looking for a case, you should try helping Lydia," Ellen tells them.
I stop her, "I can do it myself."
"Really I know how you Axes think everything is on your own. I know you can't fight all the dangers that come with getting what you need," Ellen tells everyone.
"What does she need," Sam asks?
Ellen explains, "at one point or another her kind." She pauses and turns to you, "no offense." Then she starts, "wears out and the only sustainer is this thing she needs. Only it's in supernatural central."
"Hold up...Supernatural central," Dean interrupts.
Jo answers this, "the whole town is so out of whack. Yet everything is so normal it's not. You need to see it."
Dean and Sam look at each other, "we're in."
"I never said you could be in," I clarify.
"Look sweetheart, you need us," Dean comments.
I role my eyes, "I'm only letting you tag along because you want to."
"What's with you and not wanting help," he asks?
I reply, "well because sooner or later everyone learns that people come and try to help you, they ruin you. You get attached and they change their mind about you."
"Well that's not true in all cases," Sam adds.
I turn around, "most cases."
"We'll be going to the car," I heard Dean say.
In the Impala
"So..have you ever been on a hunt," Sam asked? (A/n lol for some reason my phone corrected "Sam" to "Adam 😂😂)
"Yep, used to go with my sister and dad," I told them.
"Used to," Dean comments.
"Let's just say my family didn't take it well when they found out I wasn't their usual halfie," I tell them,
"What makes you so unusual sweetheart," Dean asks?
"I'll tell you soon enough," I answer.
"So it's a secret," Dean asks?
I raise an eyebrow, "problem."
He roles his eyes and keeps driving.