I Can't Sleep

Okay, it's not like I can't sleep at all but I don't usually fall asleep until like 3 or 4 in the morning. I usually have classes at 9a.m and I always feel exhausted. No matter how early I get to bed I stay wide awake until 3 or 4. I googled it and it's called delayed sleep phase syndrome. I have been trying to sleep for the past one hour and no not while playing with my phone.

ANYONE ELSE EXPERIENCE THIS? If yes comment what you do to make it work. If not, please leave a suggestion! Thanks. Goodnight! 💜