@Livikittenx TW: tra|\/|a [m] except throughout the comment, that word is uncensored, disorders ))
Many systems are started to cope with trama when they are really young, almost never above the age of 10.
Some systems are created by daydreaming (thoughtformed), but that term should be left for people with MaDD, which stands for maladaptive daydreaming disorder.
Some systems can be created through a practice called tulpamacy, Many people interpret tulpamacy in a different way, and use tulpa companions as an inner friend.
Edit: If you don’t have a system or you are pretty sure you don’t have one, I’d advise you not to “make” a system because systems are typically hard to deal with. However, if you want an inner companion, you can create a cool imaginary friend, which is easy to deal with and fun.