It really helps if you write down an exact plan of what you intend to do and start implementing it immediately. Don't worry if it's not perfect, you'll add to it when you have more information available! A few simple and small actions every day will bring enormous results in the long run.
2.) Find or create a product or service you want to sell online
The first step in starting an online business is to establish what you want to sell and to do thorough research of the market. Nowadays with the help iot forum of the Internet, market research has become much easier to do. It still takes time and effort, but it's much easier. For this purpose you can use search engines such as Google and Yahoo! (the latter has a very structured site and you can get many niche ideas from browsing through categories). Amazon, eBay and ClickBank marketplace are also very good resources for market research. The idea is to see what is already selling and to what degree the market is saturated. It's also a good thing to find your USP (Unique Selling Proposition).
After you found your niche STAY FOCUSED until you've reached your goals! Concentrate on one thing at a time.