Crazy Craving

Riddle: I drive people crazy, but I'm not for the lazy. Young teenagers crave me, at first I’m amazing. I'll have your heart racing, I may make you take off the safety. I'll cause suicides, and lullabies. From sunrise to compromise. To having to settle, some I'll test your mettle. Some will never know me, some will wish they never knew me. What am I?