Good samples. Well EQ'd drums and cutted samples. Well balanced bass and good mixdown. That is not so complicated but you just need to concentrate and learn those things. There are several good links at my page where you can find your tutorials pretty quick.
Been there done that. Amphetamine, weed, coke, mdma, booze mainly. It depends on the person what happens when the "loosening" has been done. Mostly it has been tolerable
First off you need to use Edirol to record properly with FL Studio. Put Edirol on your recording channel on mixer and start recording on Edirol. You will also need to learn how to EQ and Compress atleast.