questions about making a website? ive already failed once! help?

[Jake]

Most people trying online ventures fail, at least you aren't paying $80,000 to start some franchise store.

Just sticking a site on te internet is like building a store in the middle of nowhere, people are not going to just stumble onto it.
Having a top quality site in your field with useful original articles as well as aggressive SEO are needed to get a search ranked site. SEO takes time, it takes a couple of months.

Here's a Search Engine Optimization primer by an SEO authority, too much of the stuff taught by others is out of date or simply inaccurate.
http://www.seomoz.org/beginners-guide-to-seo

Profitable products on a high converting sales page can be sold with paid advertising, conversion rates tend to be .5% to 2%, so expect to have to but 100 clicks or so to make one sale.

A lot of the hassle can be eliminated by selling through a marketplace like Ebay and Amazon who can deliver ready made prospects.