My Version of Herobrine

I was loading a world, which was the Herobrine seed, I had the Herobrine skin on and when I loaded, I noticed that there were crosses surrounding me and I felt creeped out. I switched to Creative Mode to investigate the crosses but then I saw a Steve-Like player, I thought it was my imagination, so I investigated more on the world. Soon I found a Cave and when I went in, I saw redstone on the walls and decided to Ignore it.

Further, in the cave, I saw Alex, but she was dead, I was shocked to see Herobrine in the entrance when I left the cave, then my Game went Static then, I disconnected.

I was SUPER scared about what happened so I shut down my computer. When I opened it, my Desktop theme was a scary fanart of Herobrine, I was even more scared than before. It was time to go to dinner, I decided to tell my Mom about what happened with Herobrine, she said "If your scared of Herobrine, delete the skin pixels in your photos and play on servers until you are less scared

Do NOT play on the Herobrine seed with the Herobrine skin, but this only has 1000 in 0.0000000000000000000000000005 per cent chance of happening, so It is incredibly Rare.

I know it sounds like a Kid making up something but I deleted the world and played on Servers only

Please give me advice on what to do if this happens to me again in the comments.