I've seen many small businesses who try to start-up/build their business and think that they can (and should) do everything themselves. Before getting into business, you need to have a business plan and a financial strategy in place ….. and you should always recognize that the most important thing is building relationships, sales, and growth.
Your time is most valuable in those areas, so ideally you have to be prepared to focus on that, and leave the other stuff to experts. Build this into your business plan - have the financial plan to get a good bookkeeper, get a good computer guy, get a good marketing resource, etc. At first, this won't be expensive as you have limited work at the beginning, but it will then be in place so that you don't have to worry about it. You can focus on the important things, which are far more valuable to you.
Too many times I see businesses who can't grow because they're focused on doing the wrong things (and doing them poorly at that), rather than getting someone to help.
You may even outsource a few of the things that you know you could do yourself, but don't want to waste time on. This could be anything you have a particular skill at …. such as web design and branding. But it doesn’t matter. If it has the potential to distract from what you should focus your time and attention on (directly building your clientele, sales, and business growth) …. Then pay someone to do it for you.
It just makes business sense.