The internet seems to work in a "ready, fire, AIM" mode. Nothing is perfect the first time around. There are always updates, version 1.3, 2.4 and 6.7 on the way.
Microsoft Internet Explorer is on version 10. Mozilla's Firefox is at version 25. Google Chrome is on their 30th iteration.
What makes you think you need to get things right the first time around? It's okay to pay $19.99 or $20.03. You've still put gas in the vehicle and put effort into your goals.
Continuous change is the hallmark of the web. Something that is new today is forgotten next week. People's memories are short, and even though mistakes get made, companies are judged by what they are doing today instead of what they did last year.
This is good for the entrepreneur. You can have made mistakes and yet those mistakes don't have to define you. They are part of your growth. You can acknowledge them and demonstrate you've learned from them and then show the world what you're made of.
Your social media and other internet marketing endeavours fall into that category. You don't have to be perfect. Your attendance doesn't have to be 100%. More doesn't always mean better, but none won't do either. The balance between time, results and your audience's demands can be tricky to find, but when you find it, it will be worth it. Keep moving forward and giving it your best effort each time you do something. It may not be perfect, but it's better than doing nothing.