我的家人有4个（A more common way of saying it would be 我的家庭成员有四名）：爸爸、妈妈　、妹妹和我。 我爸叫纳撒尼尔，四十三岁，是技工。 妈妈叫卡洛琳，四十一岁，是家庭主妇。 妹妹叫阿紮里亚，十一岁，是学生。我叫高迪。我今年十四岁。是学生。 我继姐叫西安，她二十岁。在西安的一家酒吧卖短饮 (I got this. Yet most people might not as cocktail isn't that popular in china)，她赚了很多钱。每月来探望我们一或两次。（访问 sounds a bit too formal here. If it's just a family visit, I would use 探望 or, in less formal occasions, 每月来看我们一或两次。） Comment: Well done! Chinese is a topic-based language. If the subject of the sentence is the same as that of its preceding ones, it's usually dropped to make sentence more succinct.

我家四口人：爸爸、妈妈　、妹妹和我。 父名纳撒尼尔，四十三岁了，是技工。 妈妈叫卡洛琳，四一岁了，是个家庭主妇。 妹姝是阿紮里亚，今年十一岁，是个学生而我是高迪,今年十八岁了, 也是学生. 继姐叫西安，二十岁了, 喜欢在酒吧喝小量的酒，她赚得很多钱。每月一两次来探问我们。 1. You should post it in the notes section where you can see better our corrections. 2. You don't need "my" for familial relations. They are clearly defined in terms of oneself. 3. Like in any language, you need to varied your sentences otherwise, it sounds contrite and not natural enough. 4. I think you are trying to say, "She likes a few shots in the bar". 5. 探问 is the most personal and intimate than the other forms.

That is perfect Cody.

我的家共有4个人：有爸爸、妈妈、妹妹和我。 我爸爸他叫纳撒尼尔，四十三岁，是一名技工。 我妈妈她叫卡洛琳，四一岁，是家庭主妇。 我妹姝她叫阿紮里亚，十一岁，是学生。我叫高迪。今年十四岁。我也是学生。 我还有一位同父异母（或同母异父）的姐姐，她叫西安，今年二十岁。西安在一家酒吧工作，赚了很多钱。她每个月都会来看望我们一到两次。

我家有4个人：爸爸、妈妈、妹妹和我。我的爸爸叫纳撒尼尔，四十三岁，是一个技工。我的妈妈叫卡洛琳，四十一岁，是个家庭主妇。我妹姝叫阿紮里亚，十一岁，是一名学生。我叫高迪。我今年十四岁了,是一名学生。我的继姐叫西安，二十岁。西安在酒吧卖短饮，赚了很多钱。她每月看我们一、两次。😊