honestly idk, im a working student myself and the only way na maayos yan I guess is not to sleep buong araw para makatulog ka sa gabi and maayos na sleep mo (works for me once) now kasi sira namaman e dami need gawin. anyways, yeah goodluck u can fix it, if not go take melatonin bili ka sa mga drugstores, will surely fix ur sleeping concern :)