It is important to identify any potential factors that may be contributing to your difficulty sleeping. It would be helpful to consider any medications you have tried in the past for insomnia, as well as any other medications or substances you may be taking. It is also important to consider your consumption of caffeine and other stimulants in the evening, as well as any other underlying medical conditions that may be impacting your sleep. By addressing these factors, you may be able to find a solution to improve your sleep quality.