Since you are Xll fail, so you can go for animation courses after X , which include diploma courses .

But I will suggest you to complete XIIth first than go for animation. Because 10th passout is very little qualification to do better in your career

ARENA Animation Academy of Bangalore offers Diploma in Animation course

Eligibility:
Must have passed 10th standard from any recognized board

Contact Details:
Arena Animation Academy
#11, 11th Main, IV Block,
Jayanagar,
Bangalore-560011
Mobile: 9341228440
Phone No. : 080 26653866/ 41307771