First of all, hey!
Second of all, you're best served in the DIY forum once you get a few posts under your belt (could all be in this
thread):
DIY E-Liquid
...but be aware a lot of the flavorings are artificial that are really similar or come close, because you can't take a bunch of blackberries and pulp & strain them and add it to glycerine. You see that in the flavorings list (and water) because it's what they're dissolvable in and are basically flavoring carriers. I've heard of people adding a few drops of pure lemon to their fruit eliquids, but these things have sugar and gunks everything up.
Vanillas, coffee beans, teas, etc. are generally more successful but take a bunch more time.