As Jensen points out in his book, a newcomer in the field faces three main problems. The second is running the programs. A textbook cannot help much with this, as the continual development of hardware and software would quickly make it out of date. The final problem is assessing whether the results are meaningful. Here, the operator's understanding, insight and experience come into play.
Chemistry is a challenging science, demanding a wide range of skills and flexibility of approach.
But it's immensely rewarding. We can, in fact, be sure it will go to the ball and live happily ever after.