Are continuous vaginal discharges impure, and is it obligatory to wash the body and clothes from them? And is one sinful for chatting with a young man, pretending to be a man, in order to learn his way of thinking?

As for vaginal discharge, it is pure (tahir), and does not necessitate washing the body or clothes. However, it does nullify ablution (wudu). Whoever experiences continuous discharge should perform ablution for each prayer after its time has begun, and then pray as much as she wishes. As for claiming to be a man, this is impermissible due to the falsehood and imitation of men involved. It is also not permissible for you to speak with a non-mahram man unless there is a need and security from fitna (temptation/strife).