My family is too busy! My mom's family will stay with us during the wedding. 10 people total! I like all of them, but my mom gets very stressed and anxious. My brother is very excited! He has already been with his girlfriend for 4 years! He really loves her. I also like her, she is very friendly and funny.

我们家太忙了。在婚礼期间，我妈妈的娘家人会一直和我们呆在一起，一共10个人。我很喜欢他们，可是我妈感觉很有压力，我哥哥很兴奋！他和他的女朋友交往了四年，他很爱她。我也很喜欢她，他很友好，有趣。

这个周末我哥哥结婚

我家人太忙了！ 我妈妈的家人一边结婚一边住在跟我们(the connection words ""一边...一边...is used to express equality relation.but maybe you want to express "the whole family of my mother will stay at my home in the period of my brother's marridge", so you coud say 我哥哥的整个婚礼期间，我妈妈的家人都跟我们住在一起。)。十个人一共（put the word in front is better,the right way is 一共十个人）。我喜欢都他们(dthis word is a adverb here ,it expresses the subject is about two cases or more,for example,我和妈妈都喜欢他们.but in your sentence, the subject is single,just "I",so you needn't use it.If you want to say you like eveyone of them,you could say "我喜欢他们每一个人".)，可是我妈妈有应力（you want to say"pressure",right?in chinese,it's "压力"）。 我哥哥很兴奋。 他已经跟他的女朋友四个年。（Firstly,this sentence ,there is a lack of verb,"已经跟他女朋友"is used as adverbial, so you should add a verb.the second, "四个年"， when we say "year",normally we don't use  the quantifier. so the right way is "他已经和他的女朋友恋爱了四年"他真的爱她。 我也喜欢她， 她很友好和可笑（this word is not very good,in fact,it means radiculous. you use “搞笑（funny）”is better）。


My family is too busy! My mom's family will stay with us during the wedding. 10 people total! I like all of them, but my mom gets very stressed and anxious. My brother is very excited! He has already been with his girlfriend for 4 years! He really loves her. I also like her, she is very friendly and funny.

这个周末我哥哥结婚

我家人太忙了！ 我妈妈的家人一边结婚一边住在跟我们。十个人一共。我喜欢都他们，可是我妈妈有应力。 我哥哥很兴奋。 他已经跟他的女朋友四个年。他真的爱她。 我也喜欢她， 她很友好和可笑。


可笑= ridiculous