Hi Kaitlyn, welcome to ECF. What a great post! And a well thought out purchase, I might add. You've been given some really good information. The only thing I'll add is this... if you don't care for the juices that are taunting you, set them aside for a little while (couple days to a week) and they'll probably taste different/better. It'll give them time to set up more.
Ok one more thing. I do sometimes put a small amount of liquid in my mini protank to test flavors. If I like it, great, add more. If not, I remove the base rinse it and start over.
Good luck!