[binarybanana]

Sounds like a lack of exposure to me. With enough experience you should have no trouble to tell if others are speaking in a certain manner that is associated with male, female, child, teen, boss, subordinate, etc. etc. If you can tell you should have no problem talking correctly, or at least the way you want to be perceived by others.

If you can't tell the difference in how others use the language in stereotypical ways, you've basically not yet mastered the language.

I know from learning Japanese a bit myself. People often say using sources like anime and manga will make you sound like an anime character, which I think is ridiculous. Even in anime there are characters that talk quite normally (in fact a lot of them do, depending on what you watch, taking into account their age, gender, who they talk to, occupation and status, etc.) and it's easy enough to tell how actual usage in real life differs in real life by using some other sources, too. But even with only anime and manga as source, just use your brain and don't talk like friggin Naruto and you'd sound pretty normal. Given enough input variety at least.