For chronic insomnia lasting six months, I strongly advise against self-medicating. Chronic insomnia often has underlying causes like stress, medical conditions, or sleep apnea. The gold-standard, first-line treatment is Cognitive Behavioural Therapy for Insomnia (CBT-I), which addresses the root causes. If medication is necessary, a doctor must evaluate you to prescribe the safest option, such as melatonin receptor agonists or orexin receptor antagonists, tailored to your health profile. Over-the-counter sleep aids are not recommended for long-term use as they can cause dependency and daytime drowsiness. Please schedule an appointment with a healthcare provider for a proper diagnosis and a personalised treatment plan.