Welcome to the forum. The first thing you must know (realise) is that out of all the electrical equipment you own your computer can be the most annoying and frustrating piece of electrical equipment you will own. This is said slightly tongue in cheek and in fairness most of the problems will be caused by software. So a good bet is to read these fora, and others, and get yourself to a point where computers, especially software, are not so daunting and don't cause a personal meltdown when they do go wrong, which they will. Best advice I can give you at this point is back up, back up, back up and then back up again.