I am considering to take melatonin for my insomnia troubles.I am currently following an active b12 protocol, which interferes with sleep. I am from India, and it's not that easy to find and order stuff here. I need some suggestions, on how much melatonin I should take(I see products varied from 300mcg to 5mg!), which brand and whether time released or regular. If you have any experience with melatonin that would help me, please share. Thanks!