Newbies feels very confused sometimes about some topics like these. This kind of post always helps the newbies by information . But if information are wrong thats definitely felt some bad effects.
I suggest that dont depends on just one information, search for many reliable source, for you to know and understand it carefully. But they will really know it when they try it, if they succeed then they'll be happy, and if they fail they'll be wise. Because failure will not just give you bad outcome, it may help you to really understand the things you fail, and it will make you wise on that thing, and i'm sure that someday you'll be successful because of that.