Yes, it is true, every one begins as an amateur.
I would even go a step further and say, we suck at first. Maybe some have a gift and do something ok the first time. But for the most part, to really become an artist at what you do, it takes practice, dedication and a willingness to improve that will bring you to that level.
So if you are still an amateur, do not fret, this is part of the process. It's probably the most fun and exciting part as everything is new and it's so much fun to explore. Hang in there, keep up the great work… and you'll become an artist.