Feeling Lost After High School? Could the Quran Be Your Guide?

Salaam, everyone. I just finished high school and I'm nearly done with my first year studying medicine. Back in high school, I was super disciplined-always pushing for top grades, not just scraping by. Now, I've got an anatomy exam in three weeks and I haven't even opened a book. Every day I come home swearing I'll turn things around, but I just end up glued to my phone for hours. I hate to say it, but I'm struggling with some haram habits that are really dragging me down. Before I know it, it's midnight, I'm getting only 4-6 hours of sleep, and I have to be up at Fajr. I'm exhausted all the time, can't focus, and my discipline is totally gone. I've tried limiting my screen time, but I just override the limits. I've even gotten into listening to music constantly, which is new for me. I used to recite the protective ayat every morning, but I've stopped. I keep delaying my Salah, sometimes having to make up multiple prayers because I missed them the day before out of laziness and... other distractions. I'm so tired of making empty promises to myself. Honestly, I sometimes wonder if there's some hasad or evil eye at play, because even when I try to read the protective verses, I get distracted and forget. I have a Quran right here-should I start reading it regularly? Has anyone been through something like this? Any advice would be appreciated, jazakallah khair.