I'd still say you should meet with a specialist to try cognitive-behavior therapy for insomnia. Particularly when the problem is falling asleep, it's generally not going to be some neurological issue (those tend to involve having trouble staying awake and/or odd behaviors while sleeping), it's cognitive-behavioral. Fact is, people often times suck at falling asleep, and then they get in their heads about it, which ends up making it worse. I'd be willing to bet that with most "natural" insomnia cures, the biggest and/or only contributing factor to their efficacy is the placebo effect, which helps you to A) get out of your own head and stop freaking out about falling asleep, and B) causes you to unknowingly establish better sleep hygiene behaviors.