Hi basically I am a newbie to this software, just getting the hang of the basics but I found that all the commands are in american english. Is there something I can use, download or one of these 'package' things that can change this for me?
LaTeX was originally developed by Leslie Lamport, an American. It's therefore natural that he used US spelling in command names. For many years now, LaTeX has been maintained by a group of people. In the current team, none of the people whose first language is English are from the US, so this consideration no longer applies. However, the team are pretty clear that using US spellings is the Way Things Are, and there are good reasons.
LaTeX as a computer language is a way of describing documents that needs to be clear to many people. As such, it would very rapidly becoming unworkable to have each user using commands in a document in their own language. What is needed is a single agreed set of commands. US English is the language of computer programming, and so it makes sense to use commands in this idiom even if that's a bit less comfortable to UK English users. This is much the same as any other computer programming language: the command names are usually fixed, and one simply has to learn them. (English speakers are in this sense in a better position than others, even if the spelling is a bit strange for those of us from the UK.)
As indicated in comments, you can of course define local equivalents
but I would personally recommend you simply accept that LaTeX is what it is.
Although in substance this answer is the same as Joseph's: use
(And as this is opinion, I'm going to tick the "Community Wiki" button so that people can down-vote as much as they like to disagree with me!)
I use LaTeX for absolutely every document that I write. The vast majority of these documents are single-author documents. Even when I am writing a collaborative article, then there is usually a single author (so far, usually me). I regard the LaTeX code that I write as something that is never intended for others to see or know about. I have no objection to them doing so, but equally view it as none of their business if I decide to do something peculiar. Ultimately, it is the final form of the article that is for distribution and the source code is simply a tool to produce it.
(I'm slightly exaggerating for effect, but not much.)
The immediate corollary of that is that anything about LaTeX that hinders me is fair game for change. Having to remember to write
(If put directly in the preamble, this would need surrounding in
In this regard, it is just the same as writing
The issue of portability or of collaboration here is a red herring. As soon as you start using your own macros (and the ability to do so is, I contend, the major strength of TeX for making the author's life easier) then you have to start negotiating when you start collaborating. Indeed, the only danger of using your own macros when collaborating on a document is that your collaborator uses the same name for something else. And I would consider it highly unlikely that anyone would use