If you're an inspiring artist, you can't compare yourself to the greatest creators in human history, or even the most talented ones in your -current- generation. Chances are, you're not going to be a legendary artist. However, if you set a LOCAL goal for yourself, you can be 'successful'.
Local goals as an artist might include something like... reaching a level of artistic ability that you are happy with, being able to inspire close friends and family with your work, being able to earn enough money from your art to pay for food and rent and never need to seek standard employment, or even just getting to the point where you're comfortable enough with art to use it as a way to wind down from a stressful day.
Many artists try to compare themselves to more talented people as if it was a competition or a race, and get extremely discouraged as a result. It's okay to pull inspiration from others, or even copy elements of their style, but there's really no point in getting depressed because you're not as good as someone else. In the end, if you've achieved a local goal and found happiness in your work, then your art is definitely -not- shit. Just because you're not as good as van gogh or da vinci doesn't mean you have to constantly berate and humble yourself.
The real "secret" is to practice every day with a clear and reasonable goal in mind.
5 stars for animation quality.