Broadening one's horizon

I have been out of the web game for about 2 years now, making minimum wage in a factory, after creating a website that brought in around $40,000 in 6 months. I don't think a day has gone by I don't get a chill down my spine thinking about how much I made, compared to the minimum wage ($7.40/hr) that I am making now.

In the past, I tried several business models, and was only successful with very few, such as a browser based rpg game, and a paid to click advertising website, which was my biggest success, however it unfortunately got me banned from adwords.. Along with my successes came a lot of wasted time and money on failed projects and ventures, which eventually led to me dropping everything and getting a factory job. Oh the humanity. I cannot stand it any longer..

I have been trying to work my way back into online entrepreneurship, however so far it has proven far from easy. Which is why I have come to the collective mind of Digital Point for advice and words of wisdom from those that know a hell of a lot more than I do. I have one question..

In your opinion, what is the best way to bring a steady stream of income?