Keep in mind that using cheat codes might disable certain achievements or trophies in the game. So if you're aiming to complete all the achievements, it's better to use cheats only in a non - achievement - related playthrough. Also, some cheats might only work in specific versions or regions of the game, so be aware of that.
First, make sure you enter the cheat codes correctly. One small mistake can prevent them from working. For example, if it's a code for spawning a vehicle, you need to input the exact sequence of buttons or letters.
Understand what each cheat code does before using it. Some cheats might affect your game progress in unexpected ways. For instance, if you use a cheat that gives you unlimited ammo, it might make the game less challenging. So, use them sparingly and at the right time to enhance your gameplay rather than ruining it.