Before you order any flavorings though...it's a good idea to FIRST find some recipes you're sure you want to make. Then buy the flavorings to make those. Otherwise, if you just pick flavorings because you like those flavors in candy, or desserts, or fruits...you may end up with only a bunch of primary flavorings, but none of the secondary (or blender) flavorings, no accent flavorings, no sweeteners, etc.
Many newbies to DIY unfortunately don't find recipes first though. They buy flavorings that just "sounded good" to them. Then they post a list of the flavorings they've bought, and ask, "OK, what can I make with these? Anyone got any good recipes?" When no one can give them any, they're disappointed then.
It would be like going to the grocery store and buying just a variety of meats. Then asking someone for a good recipe to make some beef stew with it! But, you have no potatoes, no carrots, no celery maybe, nothing to make the gravy part of the stew, no spices for it, etc.
It's the same thing with eliquid. Probably 90% of recipes require a variety of the types of flavorings (primary ones, secondary or blenders, accents, sweetener, etc.).
You might want to do some reading about mixing, the flavorings types, and definitely find some recipes to base your first flavorings purchase on to ensure better success with DIY from the get-go.