Affiliate Marketing Secrets

I am looking at starting an online business selling primarily ecigs and vapor items. I have a friend that already has an established online company and is doing quite well selling only starter kits, so I know it is doable. I create websites so the tech portion will not be an issue….
So far the logistics I have are direct from manufacture or a distributor from alibaba and going nuts with online, physical, forum and WOM advertising. I will buy a bulk quantity from the manufacture and any loss of supply will be reordered before depletion.
I have a selection of 6 styles, 6 flavors and 3 color options for each.
My niche will be the hybrid vapor of health products ie: vitamins (C,B) herbs (Chamomile, passion flower, green tea) etc…marketing with HEALTH as the primary concern
….Any input or recommendations thus far? any positive info will HELP!!!!

will be importing and retailing high quality green tea for niche market