Frank - if you get millions of results returned it doesn't necessarily mean you're niche keywords are highly competitive.
Do this for your keywords to find out if your keywords/niche is something that's right for you.
Say you're looking into a certain niche, a specific keyword phrase you have found that returns some search volume, lucky for you
Google started displaying search volume numbers.
Bookmark that site, you'll be using it alot.
Your keyword phrase you've found shows potential, you have a feeling that it will bring visitors to your site that will convert to the action they need to make to make you money on commission.
Good! - now this is what you would do to find out if you have a chance of competing for this phrase, remember, tertiary keywords thus phrases consisting of three keywords and of course also phrases with more then 3 keywords are usually less competitive.
Do a Google search like this:
intitle:"your keyword phrase goes inside the quotes"
Bang! - suddenly those millions of results have dropped significantly.
If not...the phrase itself is pretty competitive and aimed for by many people.
Why? - because when you want your page to rank for that specific keyword you'll include it into your page title.
That search just returned how many people use that phrase inside their page titles.
Second search: inanchor:"your keyword phrase goes inside the quotes"
This search will show you how many times the phrase is used in an anchor link.
You need backlinks to get into the search results, so if you see a X amount of inanchor results you have a good indication it will mean you have to either work you're *** off or perhaps if you're lucky nobody is using it in their anchor links.
Note: Vary your anchor links when you're placing backlinks on sites, don't use the same keyword phrase over and over, alternate between different combinations.
You'll pick up on this when you'll get more into the SEO subject matter.
View what type of results you see returned for your phrase but without quotes, just a regular search.
If you see mostly pages ranking that's a good sign.
So if you see the top 10 mostly consisting of
www.somewebsite.com/somepage.html and so on your chances are better to outrank them.
Sometimes you'll see only the main domain name and when it's a big known site you're up against stronger competition you would want to go up against in your situation.
Use the Firefox browser and install
SEO Quake to analyze the top ten, you'll see various helpful indicators to determine what it takes to outrank that specific position in the results you're aiming for.
So in short:
1: Compile a list of keywords that you suspect of converting and have search volume.
2: Do a Google search, are you seeing pages or high authority domains in the results?
3: Do the special searches explained above.
Does the results of your findings indicate the phrase is not widely aimed for by other people?
Are you not trying to outrank a well known site? a domain with high PR and a massive amount of backlinks?
Then go for it and build your website, start working on your content and keep your on-page SEO in mind.
Learn more about SEO
here to get you started, grab a cup of coffee and...absorb the info!
P.S. - Since you only recently learned how to use email, you're best approach is to use WordPress to set up a blog. Find a nice looking template or buy a premium template to have a suitable layout and look for your site (blog) that matches well with the service/product you're going to promote.
Since you're as green as grass with all of this i would suggest to get a feel of setting up your own blog and learn how to blog first, because if you can't do that then you also can't do the above.
And Frank...use the search function on this forum which contains some great information, use Google...a lot of the questions you may up with are already been asked before, and don't pay for stupid ebooks.
If you land on a site that looks similar like
this one, run away!