Good sleep hygeine but take trazodone 300mg to sleep as needed, but doesn't always work. also taking lithium, verapamil, propranolol, bupropion, geodon (ziprasidone)?

alot of meds: For a 19 Y.O. Have your family practice doc/review and decrease number of meds.

Too many meds: Hard to address sleep in isolation without the bigger picture. I too am struck (and a bit aghast) by the number of meds you're on. This is what some docs do when over their heads-- add one med after another, like throwing spaghetti against the wall, hoping something sticks. Get an in-depth consult with a first-rate psychiatrist who can develop a sound treatment plan and follow up with you.

MEDICATION: Getting good night's sleep is important for physical & mental health. Insomnia might be due to several reasons. Have a physical exam to rule out illness. If cleared consult with a Clinical Psychologist with expertise in multiple types of psychotherapy that helps you benefit from medication prescribed by a Psychiatrist. If uncomfortable with your Dr. seek 2nd opinion. You may need a sleep study.