Am I doing something wrong?

Ok, in my two weeks since I started affiliate marketing, I still have yet to make my first sale. That is not important however at this stage in the game (though I hope to make one soon), what is important to me is that I think I am starting to figure out how this works to a certain extent. Here are the basic rules to IM that I have come across multiple times, if I am wrong let me know.

1. Choose a Niche

- It doesn't matter what the niche is as long as you are knowledgeable about it

- It could be the most saturated niche in the world (weight loss), but as long as you find a sub-niche within that niche you can still turn it in to a huge money maker

2. Keyword Research: This is somewhat part of step one, this is how you find your sub-niche

- Research a general area and narrow it down to a specific group of people (losing weight for a wedding, losing weight for the beach, etc.)

3. Create a Landing Page

- Start a Blog

- Create a Squidoo Lens

- Purchase a Domain and create your own site

4. Catch your readers attention with some good Sales Copy and throw it on your landing page

- Put yourself in the buyers shoes, why are they searching for this product

- Give them a solution

4. Drive Traffic to Your Landing Page: This is my biggest struggle, but so far I have only used Squidoo

- Submit your landing page to social bookmarking sites

- Ping your site with ping-o-matic/pingoat

- Use free traffic system to drive traffic to your site

5. Make the Sale

If you can successfully execute these steps, that is pretty much all there is to it right? Granted, there are other methods to use in each of those steps that I have stated, but that is the general idea. One of the biggest things I have learned (and please tell me again if this is wrong) is that it doesn't matter what niche you choose. Any niche can be as profitable as you want it to be, no matter how saturated it is as long as you are willing to put in the time and effort to find the right sub-niche within that area. Does this sound right?

PS I would like to make my first sale soon, im not talking about a ton of money, just one sale. I am getting sort of discouraged, though I do not plan on ever giving up on internet marketing. For the past two weeks I have worked at this for an average of 5 - 6 hours a day, and though I think I have learned alot, I have not made a sale still!