This guide is pretty grand and is something I have been using for other people to refer to.
In any case, I just wanted to add something I find to be really key about writing mental illnesses. There just has to be a balance. People can suffer from a mental illness in many varying degrees, but no matter what, a mental illness, or any other kind of disability for that matter, does not define a person. People will always have a personality. While it can have a big impact on their life, it becomes somewhat of a norm to people, so it isn't something that is constantly on their mind by any means. It is very possible for people to have a mental illness and function properly in society.
With that being said, don't underestimate it either. A mentally ill character is more than just a plot device. This kind of goes with romanticizing mental illnesses. Don't just make a disorder come into play when it's convenient for you for some insta-drama. Similar to my pet peeve about how the pregnant woman always seems to give birth when everything is going wrong, all too often do these disorders only seem to come into play when it would be most exciting. Make it affect them in normal situations and everyday activities.
Just... balance.
In any case, I just wanted to add something I find to be really key about writing mental illnesses. There just has to be a balance. People can suffer from a mental illness in many varying degrees, but no matter what, a mental illness, or any other kind of disability for that matter, does not define a person. People will always have a personality. While it can have a big impact on their life, it becomes somewhat of a norm to people, so it isn't something that is constantly on their mind by any means. It is very possible for people to have a mental illness and function properly in society.
With that being said, don't underestimate it either. A mentally ill character is more than just a plot device. This kind of goes with romanticizing mental illnesses. Don't just make a disorder come into play when it's convenient for you for some insta-drama. Similar to my pet peeve about how the pregnant woman always seems to give birth when everything is going wrong, all too often do these disorders only seem to come into play when it would be most exciting. Make it affect them in normal situations and everyday activities.
Just... balance.