I built a really nice house in a really nice flat world.
I decided I should look through all the items in Creative Mode. I found Lingering Potions, so I splashed healing potions all over my house and some invisibility potions. It looked like fire, but it said that it would only be there for a few minutes.
As I went into Survival Mode, I didn't get any of the effects applied when I stood in the clouds of the potions. It's very laggy and annoying, so please help me. They also look so dumb: I don't want my house looking like it's on fire for the rest of my life.
Just so you know, I don't know a lot of commands.