Science

I was weak in topics like laws of motions, mechanics and kinematics from 11th class. I never tried to understand these topics deeply that resulted in just 65% aggregate in my 11th class.
When I joined coaching in my drop year my physics sir said that laws of motions, mechanics are scoring topics but my mind never cooperated with me.
It developed a phobia in my mind, mechanics phobia. What happened next was I didn't attempt mechanics questions in in JEE 2016.
I decided to overcome this fear by choosing mechanical engineering.
I was having passion in learning about machines, gadgets and automobiles.
In first year of engineering there is no mechanics in physics in both the semesters, however, in 2nd year the mechanics subject has a huge new topics to cover. So I would suggest you to overcome come your fear of mechanics by opting mechanical engineering.

You can choose from wide range of courses offered by various institutes in India after completing your 12th.
Courses:
B.Sc in game art
PG diploma in Visual communications
Game art (core)
Game art (professional)
Game design, etc.
or
You can take some degree related to computer science or information technology, where you can learn the basics of coding and try to become a strong programmer. If you are good in coding either networking or writing drivers or developing games will become easy. Then focus on graphics and maths which is a lot used in gaming.
I had become game developer by mostly by practicing only. Develop one by one game and learn the concepts and all.
But nowadays big game engines are giving their source codes free, so acquire enough knowledge to understand it when you read their codes.