A student can do animation or graphic designing course after completing his/her class 10th or 12th. As you told me that you are failed in your class 10th & you wanted to do animation or graphic designing course, in this case I strongly suggest you to join any animation institute for doing animation course because animation or in any designing field, your skills are important rather than your qualification.
ANIMATION OR GRAPHIC DESIGNING COURSE . ANIMATION IS A GOOD CAREER OPTION
Now a days animation is a very good career option for the youngsters, despite the global economic crisis in recent times, the scope of animation course has been increasing rapidly. No industry either it is govt. or private, small or large can run effectively, efficiently or smoothly without the help of animators. The following are the fields where an animator should be hired:

2D Animator
3D Animator
Flash Animator
Background Artist
Layout Artist
Texturing Artist
Lightning Artist
Compositor
Advertising & Packaging Designer
Graphic Designer
Interior Designer
Web Designer
Character Animator
Key Frame Animator
Image Editor

SKILLS REQUIRED FOR DOING ANIMATION COURSE

If you want to make your career in an animation field, then the following skills must be required:

The main & the most important skill that has helped the growth of the animation industry is the Creativity. Animation create images by using the software. It is a modern art form that offers numerous job opportunities for skilled & successful animators.
Great Imagination Skills.
Drawing Skills.
Good Presentation & Communication Skills.
Different Color Sense.
Ready to meet the deadlines given by the clients.
Must have a knowledge of computer & its software.
Good Patience level.

ANIMATION BOOM- THE BEST ANIMATION INSTITUTE IN DELHI

I would strongly suggest you to join Animation Boom, which is the best & the most reputed animation institute in Delhi for providing animation course in Delhi. They also give you 2 free trial classes before admission.