Hi. I can only reiterate some advice I gave in replies to other posts - research, research, research! As you are obviusly online, all the information is at your fingertips - it's just a case of visiting the dropship sites, reading the forum postings (of which there are many), etc., etc.
Once you find a supplier you like, and a formula that works, then stick with them, but never stop researching and learning!
I wish you best of luck - who knows in a few months, you may be back answer posts and giving sound advice yourself!
Regards.