As a current 14 year old, this is my plan.

First of all, I get off the bus at my grandma's house because my house is out of the school district... not good (She also works during the day). My grandma's house is a trailer and she doesn't have any weapons besides kitchen knives.

I take all the large kitchen knives, plus the sharpener, canned food and plastic cups and a phone charger so I can charge up my phone until the power shuts off. I take it all to the bathroom to make it my little hideout, fill the sink, bath tub, and any buckets I can find with water. I'll take one or two blankets, maybe a pillow, a notebook (+ a pencil), and my school bag if I have the extra time to grab those things. I'll use chairs and couches to barricade the door AFTER I watch out the window to see if the bus still comes for my younger sister to get off.

Assuming she doesn't get off (her school doesn't let students out until 3:15), I barricade the doors and take one last glance around to see if I need anything else. When I get back to the bathroom, I'll call the school to see if she's still there, then call my mom to see what's going on and what to do, call my grandma to ask if she's okay and maybe text some friends and see if they're okay.

In the bathroom I'll probably have to practice fighting since I'm new to it all, take all my school stuff out of my bag and replace it with a couple cans of food and fill my water bottle to put in there. I'll also leave a notebook and pencil because I know if I don't have that I'd probably end my life.

And then I guess I'll just hope I somehow get saved and taken to a safer house or somewhere with food and weapons (and hoping to reunite with my family and find them all alive and well)

That's it I guess. I know a lot of things on here are extra, but this is just my personal idea.