Do you know what RTFM mean? It's an abbreviation of Read The Fucking Manual. It's usually said or written in response to a question when a person being asked believes that the question can be easily answered by reading the instractions or user's manual. That usually happen when people buy themselves a gizmo, go home and unpack it, then they start using it and soon after they are getting error messages or the device does not work properly (as they want or as it should work). The first impression is that the gizmo is deffective or they never got what they asked ar the store, but it usually that's not it. The most common problems in first days of usage are triggered by the wrong usage of a device - any device (it works the same for computers, tablets, smartphones, washing machines or cars).
Nobody is born an expert, we all have to learn from scratch for about all the fields of activity. In this matter we are all born equals. Some become experts in time, afters months and years of intense usage of the elements of their field of activity, so don't blame youself that you don't figure out from the beginning what does the strange unfamiliar thing near you.
:"Read the instructions" should be the first and only rule when dealing with technology around you. The manual was wrote especially for you, so use it. Only you can be blamed later for your frustration if you don't study. The gizmos are created to be used easily, the most taks are very simple... with the condition to be instructed to use. Once you know all the necessary steps to finish a task (before you start it) it's a piece of cake to do it - after doing a few dozen time you don't even need to think about it, you do it by heart. For some people using a gizmo without reading the instructions is like reading Nietzsche's works (for example) in the original language when they are just starting to read and write in their native language, different from 19th century German. And that's fucking frustrating (the harsh language is intented, especially I know that all of us live such moments at least once or twice in our lifetimes).
The biggest lie from the internes is when te people check "I've read the terms of agreement" when signing up on a website that have such terms: almost no one ever reads them. Don't lie yourself when dealing with gizmos: study the manual first, in the first hours and days after you've got the device, then start using it with (eventually) addition questions.
RTFM