Ran away from foster care at 16 and now im 18 help lol

First I wanna give some (a lot) of context. I got placed in foster care a day after my 16th birthday. I got placed with a family that had one other foster child and the foster mother's real daughter. it was a nice enough place however It felt lonely, the two days I stayed there all I was told to do was to clean her car to get it ready for the foster mothers birthday. other than that I was sitting in a shared room that I wasn't allowed to make my own because the other girl had it how she wanted it. This wasn't an issue for me, aside from the fact I couldn't make it feel like home so I was just uncomfortable and couldn't sleep well. the other foster daughter and I cleaned her car the day before the foster moms birthday and we left the house "to go to there grandmothers house." A bit of context this was just 3 days after I got picked up and driven 2 hours to a random persons house I was now on my way to another strangers house. As we got closer to the grandmothers house it became more and more of a sketchy area (people shooting up and lady's of the night out in broad daylight.) we got to her house there was a lot more people (im assuming the foster mothers sisters and brothers) there was also a lot of small children (ages 3-9) that later I would get told I had to lie and say I was 18 (while I was 16 at the time) to watch them at a small water park that was close to the grandmothers house. After the water park the grandmother picked us up and we had to pile in the car (we didn't all fit so we had to put a kid on my lap) it was all around just an uncomfortable experience for me. By the time we had gotten back from the water park the only people at the house was the 4-5 small children, my foster sibling and the grandmother (all of whom I do not know personally or at all tbh) I remember thinking that I just wanted to go home and the kids where talking about playing hide and seek. so I saw that as a perfect moment to get them to stop watching me. ( sorry this story is all over the place but I forgot to mention by this point they where watching me like a hawk because I had just moved in with them and there previous foster kid ran away before me) SO I told the kids I wanted to play with them and I wanted to hide so while one kid counted and everyone else was trying to find a hiding spot in the yard I ran out the side gate. I ran for a while before I used someone's phone to call someone to pick me up.

THATS MY STORY here's what I need help or advice with

Ive been in hiding and not gone to the drs the dentist or anything of that nature, let alone school. I just turned 18 about a month and a half ago and as soon as it was my birthday I've been calling and trying to get ahold of anyone. does anyone know the fastest way to go about getting important paperwork back from fostercare? I got ahold of my socal worker two times the first time she asked if I wanted to go in to adult foster care and the second time she said she didn't have my paper work and didn't know who does, nor my things they took from my aunts house and took to my foster placement. im kind of lost, any advice is welcome (unless ur a butthole) sorry this is so long thank you for reading :)