If you don't know the difference between 'their' and 'there' then I doubt that you are capable of creating the sort of content that will get links from worthwhile places.
If your business can support it get a good company to help you. If your business can't support it then consider dropping it and finding out what you're good at. Don't waste another second of your life.
The internet is 99.9% rubbish and the current trend is to reward the 0.1%.
