No one is a great drawer from the first time, to be good first of all you have to got your passion of art.
To friends that want to know how I start with my art:
1.First time draw, my art was very bad (mostly like dog to cat and stick man) but I don't loose my passion.
2.For hand drawing i usually draw grey line
3.For a long time of practices I can draw better so i changed to draw in a different point of view.
4.After that was 1 year study to shade by pencil cause I didn't studied extra art class so I study by my self
5. It's been a long time drawing by hand so I try something new or I mean draw on computer.( After you finish learning hand drawing you want to draw on computer using paint program).
6.About half of a year I get better and better like any tutorial you have seen.
PS:So just don't be so sad if your art is not good, because I already went through it and i'm sure that from the first time, my drawing skill maybe even not as good as you are. Good luck to all my drawing lover friends in their way of learning and practicing