心想事成means all your wishes or dreams come true, so if you say 祝你心想事成 to someone, that means wish your dreams come true. This phrase is similar to 梦想成真。 寿比南山 is often used when celebrating birthday for an elder, usually grandpa generation. 祝您寿比南山means wish the elder live longer. This phrase is a metopher, 寿means life, 比means like sth, and 南山 is a famous mountain in China, so this phrase means wish the elder live long like the mountain. If you have any other questions about Chinese and Chinese culture, just ask me. I'm very glad to talk about language and its culture with you, and also want to learn Spanish culture.

First notebook entry: Introducing myself

我学习普通话. 我想去中国.
我会说英语和德语. 我住在多塞特. 我家离市中心挺远的. 我进城得搭公车.
我啦小琴，弹钢琴，弹吉他.

 

你好，我叫Jesse。你的汉语小作文写的很好，但是有几个小错误：汉语的句号要用小圆圈。而不是英语里面的黑点。拉小提琴应该是“拉”。希望成为你的朋友，汉语学习上有什么问题可以问我，继续努力吧。