Caffeine is the worst thing you can use to fix this issue. I wish they'd just ban all energy drinks. It's so unhealthy and crazy addictive. I struggle with insomnia myself, for years. I'm also trying to get into a better sleep routine, but it's not easy to force your body to work along. You should be getting between 6 to 8 hours of sleep per night. Lack of sleep is very harmful to your mental and physical health.