Translation of yuxtaponer

One of the most difficult problems I have (and I am sure that others have it too) is getting used to the superficiality of the life in the US. To be superficial means to me not to be able to recognize.
Nevertheless I think that we need to communicate. All in all, we will learn a lot from each other, mostly by writing, but speaking exercises are also really good for your Spanish skills. Is this OK?
I am glad for your help. I am sending you additional codes in the attachment. Please remove all codes that are without mistakes from the document and leave just the codes where you made changes.