loops is a good place to start because its fun to play with loops and you can sorta see how things fit together .. i have to agree with FBS to really get the most out of your creativity the next step would be certainly adding youre original sounds to the loops and eventually making your own loops entirely :)
First, if you want to learn audiotool, you can't use only loops...... it's easier to make a track only with loop, but the synth (heinsenberg and pulverisateur) are so powerful, that you have to learn them before using loop to understand what can you do with audiotool.
Second : DONT SPAM ON OTHER USER'S TRACKS.... WITHOUT EVEN LISTENING THE TRACK !!!
third : Make a real track with you sound, and let the "remix" icon.... because if you want that someone helps you, he has to see your set up ;-)