My first mistake is when I was washing my fish tank. I left the cup with my fish in it too close to where I was washing the tank and my arm knocked it down. I freaked out and started to scream, but I managed to get him back into the cup and he's still alive now. Lesson learned though. Now I never keep the cup close to me.
My second mistake was when I left my phone on the plane. I left my phone in this case right by me and started to sleep. That was not he best idea. I think it fell when we were landing. I woke up right when we landed and didn't think about it. I noticed later that it was missing and I cried a lot, but I got it back a little later. The lesson here is when you're done with things on the plane, put it back in your bag.
My third mistake was when I left the freezer slightly opened. I went to get ice at night and I guess I didn't close it good. When my dad opened it in the morning the ice was a little melted and some things were soft. I had to clean it all, and it was not fun. The lesson here is always check if your freezer is closed really good.
In conclusion, everybody mistakes, but we can always learn from them. So, that's what I did with these 3 big mistakes. Thanks for reading. :)