Not all call of duty ghosts cheats and hack websites like that you design and develop may be for your own self, you may often find being approached by other individuals as well as businesses who may ask you to build a website for them. You dont have to worry about finding detailed tutorials on how to make a website for others because it is no different from what you do for yourself.
The only thing is that, you will need to take detailed instructions from the person that asks you for a website so that you have a clear understanding on what it is that they actually want. There are many things that can be done with websites, and not everyone shares the same purpose. All of your future clients would make different demands for custom websites making it important for you to understand their needs better.
You will have to make them suggestions as well on what would be the best platform to base their website upon and how easy it would be for them to manage it. Web development is a profitable venture as many website owners may not only ask you to build sites for them, but may also give you the task of managing them on their behalf. You may even host their websites and register domain names for them if you would like to offer an all in one service.