Is watching cartoon pornographic films (Hentai) forbidden in this life and the Hereafter (Paradise)? And how can one get rid of lust? And what are the forbidden things in Paradise?

It is forbidden to watch pornographic films, whether animated or otherwise, and Paradise does not contain such impurities. The way to overcome lust for those who cannot marry is fasting, along with safeguarding one's hearing and sight, avoiding places of temptation, occupying one's time with beneficial deeds, and seeking Allah's help.