I tried some of these, like fixing sleeping schedule, setting goals and prioritizing tasks. I notice that these things work for some time and definitely help, but eventually they start falling apart, I start getting less sleep before exams or during part-time jobs, then I start to postpone my goals and some of them end up never accomplished. I think I need not just attempt to use these advices occasionally, but make them into habits, do you have any ideas how to develop a habit of setting and prioritizing tasks?