When playing in an actual game, you need to make sure the game is set up correctly so it can be run smoothly. If something is wrong to begin with, it may mess up the game if someone figures it out. Therefore, go through and check everything so it's set up properly before the game even begins.
Also, not only does everything need to be set up properly, you need to make sure you also have the right equipment because this may also cause a problem during the game. For example, you may have cheap equipment for practice, but you need to have nice and safe equipment for a game. However, when you get into tournaments they will buy specific competitive volleyball equipment so everyone uses the same type.
Competitive volleyball equipment is going to be a little nicer and more expensive than other volleyball equipment. I'm not saying to go out there and buy the most expensive items out there, but don't go out and buy cheap equipment that you use in you backyard because the quality may be terrible. Research the products before buying!
Since most people don't buy competitive volleyball equipment as it is, but if you're a small budget, I would recommend buying used volleyball equipment, unless you feel uncomfortable with it. You also may want to order wholesale volleyball equipment online to help you save money when you need to buy a lot of one thing.