Trial and error promoting CB products- still no results

Hi! I've tried everything from youtube testimonials, blogs/landing pages, article marketing etc but still have $0 sales. I've read through the forum tons but for some reason still can't make a sale and it has been months. I'm a newbie to IM and understand it takes time. I have tons of free time b/c I have off from work the Summer; Im thinking of offline/flyer marketing and slideshare next. Any thought/advice would be greatly appreciated!

The problem is you have tried EVERYTHING not ONE SINGLE THING.
Focus yourself and work hard.