Need help 😭

I've always been a light sleeper and I'm pretty sure I have insomnia but over the last 3 days I always sleep for like 5 hours randomly wake up beacuse someone opened the door or my brother (who sleeps in the same room) is snoring too hard (btw he seems to be a heavy sleeper and I envy him for that 😭) and can't go back to sleep even after like 3 hours of trying