If you want your day to continue being cheerful and relaxing, DON'T try to learn about sales taxes and business licenses and suchlike and so forth.
However, if you whine and complain about your incompetence and cluelessness on Facebook, your friends will probably comment, which will probably make you feel a little better. - until you start thinking too hard again. At which point, it's time to get your iPod, select "Michael Buble" under artists, and tell it to shuffle all the songs. Then what you'll need to do is close out every tab you had open (which would include this one, and this one, and this one.), and go look at random people's facebook pictures while you enjoy your tunes.
Inevitably, you will find that you must move on to other tasks, which will require closing facebook, and turning your iPod off. Then you will remember that you wasted hours trying to learn important business stuff, and all you really learnt was that you have a lot to learn and don't know how to go about doing it.
At which point, you will have to try to forget about it, resolve to not let it ruin the rest of your day, and go about doing more useful/enjoyable things.