Hi There, I'm Kiran-Jamila from Pakistan, Professionally a Graphic designer with age of 18th.
Here i'm going to tell you how to be professional Graphic designer on any site:
First of all choose Graphic Designing if you are interested because if you not interested so you can't do anything, if you got your interest so your Success is coming to You.
Now if yo want to be a Graphic designer you need to ignore all that thing who look like against to graphic design, keep remind that words on your mind that " Graphic Design is a beautiful Art and you can design anything through your art because the Art is one of the most important for any culture and you are doing help to carry your culture"
Guys if you think that you can't designing but you want, so try to design some thing and show it to your elders who are in the field of graphic designing, You don't need to shy because everyone made mistake in their starting days that's not a big deal, but you are learning from your mistakes, That a Big Deal and my solute to those guys who learn from their mistakes.
Now come to point keep trying to make your own art without seeing any other designer if you want personally learn.
Guys imagine one image and think if you will change it in cartoon style so how it will look, don't forget that imagine power is Brilliant!
Now try to make it first with pencil on cover then capture it and save it on PC, further install illustrator because illustrator is Great to do any Graphic job and now paste your drawing on it and try to make pen tool on it.