Ok ive been working with ableton for oh about 4 months and I am a terrible clueless lug with it. Also abletons starter sample library is garbage. Also the drums that ableton come with are garbage. I also need help using operator and making good dubstep/drum and bass basses. If anyone can help that would be nice. My fav bass ive made so far mimics adventure clubs main bass. Also is also best word.
There is far more to know about ableton than one could write in a post here. Going to youtube and Google, yourself, and searching for those videos and articles, yourself, will be far more beneficial to you than asking people to tell you those answers.
In addition to the online tutorials that you can find and the guide here on MLR, I'm pretty sure that the most recent versions of Ableton Live all provide built-in guides on how to perform basic functions and tasks within Ableton. The built-in tutorials in Ableton are how I learned it. As for Operator... yeah, not really a great synth, in my opinion.