Is abandoning the covenant of the Tijaniyya tariqa considered waging war against Allah, and is what an individual sees of the Ahl al-Bayt real or not?

Abandoning the Tijaniyya order and forsaking its litanies is a religious obligation, because it is an innovation (bid'ah) and misguidance. The changes you observe in your home are divine decrees from Allah and have no connection to abandoning this order. The prophets were the most severely tested of people. What is happening to you might be the work of jinn devils, aiming to frighten those who leave their path, but whoever seeks refuge in Allah will not be harmed by anything.