Hello. I also experienced insomnia during my senior year of high school, when I was living in a dormitory. At the time, I found that both internal and external factors contributed to my sleep difficulties. Internally, I was dealing with anxiety and irritability. After the lights went out, my thoughts would often wander. Externally, my roommate's snoring was a significant source of disruption.
I attempted to address my insomnia problem using two different approaches.
The first step is to address external factors, which is often the simplest solution. I rented a house outside the school for the second semester because I couldn't ask my roommate to leave or ask him to stop snoring.
The second approach is to address the internal causes, which include anxiety and excessive thoughts in bed. I have considered a number of potential solutions, including but not limited to counting sheep, emptying the mind to control thoughts, meditation, and so on. However, none of these techniques have yielded significant results. Later on, I tried a different approach. It's often more helpful to redirect than to block. Given my inclination to think things over in bed, I've simply taken control of what I think about when I sleep.
I have found that I often fall asleep quite easily when I lie in bed and start to imagine the content of a novel I am reading. This usually includes characters, plots, settings and so on.
I came to understand that this method of falling asleep involves guiding thoughts to specific content to avoid the influence of other anxious content on the brain, which allows the brain to enter a state of pleasure and fall asleep peacefully.
If you suffer from insomnia because you find it difficult to stop your thoughts from running while you are asleep and this causes you anxiety, you might like to try this method.


Comments
I understand how frustrating this situation must be for you. It's common to have trouble adjusting after a break, but two weeks is quite a while. Maybe it's time to talk to the school nurse or a doctor about your sleep issues. They might offer some solutions or adjustments to help reset your biological clock.
It sounds like you're really struggling with your sleep pattern since returning to school. Have you tried establishing a bedtime routine to signal to your body that it's time to wind down? Sometimes simple changes can make a big difference in helping you get back on track.
Returning from vacation can be tough, especially when it affects your sleep. Could stress or anxiety about schoolwork be playing a role here? Sometimes addressing those underlying feelings can improve your ability to relax and sleep better at night.
Sleep problems can be so disruptive, especially during such an important year. Have you considered speaking to a counselor or therapist? They could provide strategies to manage any worries that might be keeping you awake and help you cope with insomnia.
It's concerning that your sleep hasn't improved despite the passing time. Keeping a sleep diary might give you insights into what's affecting your rest. Tracking your habits and sleep patterns can sometimes pinpoint triggers and help you find a solution.