I cannot get deep sleep and wake up too often and have bad dreams and feel tired during daytime for two years, do u have suggestions?

OSA: Obstructive sleep apnea is a consideration here. If you snore, feel tired after you sleep enough hours, fall asleep easily in different situations like watching tv, or riding a car; and mostly if this started at a time when you gained some weight, you should ask your dr about a sleep study to rule out osa, and other sleep disorders.

SLEEP DISORDER: Getting a good night's sleep is very important for physical and mental health. Insomnia might be due to several different reasons. First have a complete physical exam by a Dr. to rule out an underlying biological problem. If no problem consult with a Clinical Psychologist for psychotherapy help & in addition you may need a Psychiatrist for medication. You may need a referral to a sleep study.