There are people like your sister who although they think they mean good, the way they say things are very hurtful and they hate corrections themselves hehe. It's great that you decided to walk away from her instead of always trying to please her. Happy to know she realized her mistake of treating you badly :)
You have several ways to have fun which is great, mobile phone games that improves your vocabulary, reading, spending time with friends, beach and food. All FUN❤