I've tried to limit the time spent on my phone or laptop before bedtime but even without it, i lie awake even with my eyes closed for hours on end and i still cant fall asleep?

Insomnia: Sleep is fragile and as you mention, affected by stress, and varying schedules. This can cause problems with thinking and concentrating. Do suggest a visit with a psychologist to evaluate the emotional landscape, perhaps having a general blood test screen to uncover abnormalities. Maybe start with more extensive interview via our virtual consultation telemedicine process, to design approach.