My suggestion is don't get in a big hurry, read ALOT of the info in here and learn what you're doing before doing. IMHO, getting it all wrong the first time puts you back a few months.....and could leave you very discouraged.
Figure out at least a basic plan to get started: lights, ventilation, room size, soil, nutes etc.
That said, autos are quick, but not a big yield, clones are a bit slower, but quicker than seed as long as you can find someone you trust to get your clones from.