你要对自己好一点。

Nǐ yào duì zìjǐ hǎo yìdiǎn.

You should treat yourself a little better.

我自己一个人住。

Wǒ zìjǐ yí gè rén zhù.

I live by myself.

我想自己去学校。

Wǒ xiǎng zìjǐ qù xuéxiào.

I want to go to school by myself.