St0lker-400

Story:
Day 1
A pretty normal first day. I gether some wood, i build a small hut and build a mine nearby. I used "Chunkbase.com" to find the coordination of biomes, structures and etc meaning that i don't need to explore so much. It was afternoon when suddently a black figure appeared behind the woods. I was in jungle biome so the trees were large and that figure easily hid behind it. Ofcourse my main food source were water melons as it have alot of it. About the figure i did not think about it as i though it was just a bug. Pretty much looking like a normal player in all-dark skin except i was in singleplayer. I build second house on top of a mega jungle tree so I would be safe of any mobs. I did not have materials to build bed so I just watched the moon rising from horizon as things got darker i saw something moving in the distance. At first i though it was just creeper until it stared at me. It did not have eyes so it was just dark figure but the moment i looked away becouse i saw skeleton nearby it was gone. I got only wood and melon as well as ladder and doors however what i needed was iron
Day 2
Day 2 was smoothly. In the mine i was able to gether both coal and iron as well as i found cave system. I get torches and while i was in the cave i saw the black figure again. I reached in Reddit to share my story about this uknown entity and what bug it could be possibly be however their comments was that I faked it only for attention which wasn't true... I was in 7th grade after all so i just study for the upcoming tests. When i got back i saw that some of my items were gone. I mine more and eventually found some gold that i can use in the nether. Day 2 ended as the sun sets below the trees and eventually the moon rises that spawns all evil mobs
Day 3
As i was having so much iron and wood, i decided to create a larger base. Instead of one structure, it had few smaller structure ontop of trees that had different purpose. I build a bed, iron tools and my mission was to get diamonds. However when i checked my chests they were empty even when i putted alot of items. I knew this had to be a bug... right ? RIGHT ??? I lost patiance and asked my friend to help me investigate this entity. He told me about herobrine however the skin and description did not match neither the fact that this entity just stalked me instead of well... doing what herobrine does. Also herobrine was confirmed to be most-likely faked unlike this creature. He told me about Null but still it was different. As the sun was setting over the horizon I once again saw it. He dissapeared in just half a second after i saw him but i was sure it is real.
Day 4
I had weird feeling about it. It was unusual. So i just stayed AFK all the time for the entire day until i returned and saw it. It was behind the window i made however i saw only part of it. I turned around and ofcourse it dissapeared. Nothing new however my friend is worried that this entity could be a threat and might be a hacker
Day 5
There was a mushroom biome 5000 blocks away in the postive X and negative Z coordinates. I sailed and even found multiple ocean monuments. I made another base and my main food source was well alot of fish. I was unsure but then the entity teleported infront of me. I was unable to move. The only thing i did was turn off the laptop. Finnaly! Peace!!! After that i turned it on and to my suprise they was a message on my screen that says "You can't escape". I made a screenshot and tried to show it to reddit however to even larger suprise i did not have internet. I checked my internet and it says "Internet is blocked by third-party". At first i did not understand it but after few second i realised that third-party is something outside of the internet connection. This mean that this hacker is blocking me to send screenshots. It also deleted all my programs, my photos, art and other and i could not do anything. It knew that if i send it to reddit or other platform then they would realise what will happen. I was so much shocked however then i realised i can use my phone. I send the images in reddit and twitter and ofcourse they spammed that it was fake. I took a break from minecraft and re-install my laptop, log-in into my MC account and to my suprise the world is there but CORRUPTED. I checked and it was all in bedrock. I looked in the distance but it seemed like all blocks except water, wava and air turned into bedrock. I saw the hacker... i asked him why he did that and he responded that if i do not give him 15000 dollars he will tell my irl coordinates to the dark web. He also showed me photos of me that were taken using my camara... I called the police and this was the end...