This isn't so much an Islamic reminder but a question, how to stay focused on the hereafter. I'm reading a book on the aakhirah and am going through the chapter on hellfire and it's really motivating Alhamdulilah but I know once I finish the book after a few days my motivation won't be as strong

Same with reading stuff on jannah, it's like subhanAllah I want this but after a week the motivation isn't as strong