natural hair is what you make of it. cleanse, moisturise, style, simple :D the more you get it to do what it doesn’t do naturally, that’s when there’s problems i.e getting your hair to hang when it is 5 inches long - our hair grows ‘up’ then ‘down’. the latter half of your question concerns me… if you have a curl pattern, it’ll show. however, being ‘only black’ doesn’t mean you won’t have one. i’m nigerian and i have several curl patterns!
please remember your hair is beautiful no matter what texture it is :)